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Finding the Fourth Proportional to 8,081.40, 11,152.98 and 4,544.40

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Solution

The fourth proportional to 8,081.40, 11,152.98 and 4,544.40 is: 6,271.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.40 : 11,152.98 = 4,544.40 : x
  2. Step 2: Convert to fraction form
    8,081.40/11,152.98 = 4,544.40/x
  3. Step 3: Cross multiply
    8,081.40x = 11,152.98 × 4,544.40
  4. Step 4: Simplify right side
    8,081.40x = 50,683,602.31
  5. Step 5: Solve for x
    x = 50,683,602.31/8,081.40
  6. Step 6: Final answer
    x = 6,271.64

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,082.40, 11,154.36 and 4,545.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.