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Finding the Fourth Proportional to 9,190.88, 13,688.98 and 9,146.08

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Solution

The fourth proportional to 9,190.88, 13,688.98 and 9,146.08 is: 13,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.88 : 13,688.98 = 9,146.08 : x
  2. Step 2: Convert to fraction form
    9,190.88/13,688.98 = 9,146.08/x
  3. Step 3: Cross multiply
    9,190.88x = 13,688.98 × 9,146.08
  4. Step 4: Simplify right side
    9,190.88x = 125,200,506.20
  5. Step 5: Solve for x
    x = 125,200,506.20/9,190.88
  6. Step 6: Final answer
    x = 13,622.25

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.