Home / 7,431.40-11,147.10-2,166.16

Finding the Fourth Proportional to 7,431.40, 11,147.10 and 2,166.16

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Solution

The fourth proportional to 7,431.40, 11,147.10 and 2,166.16 is: 3,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.40 : 11,147.10 = 2,166.16 : x
  2. Step 2: Convert to fraction form
    7,431.40/11,147.10 = 2,166.16/x
  3. Step 3: Cross multiply
    7,431.40x = 11,147.10 × 2,166.16
  4. Step 4: Simplify right side
    7,431.40x = 24,146,402.14
  5. Step 5: Solve for x
    x = 24,146,402.14/7,431.40
  6. Step 6: Final answer
    x = 3,249.24

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Half scale
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Double scale
Find fourth proportional to 7,432.40, 11,148.60 and 2,167.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.