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Finding the Fourth Proportional to 8,902.62, 13,332.06 and 7,135.20

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Solution

The fourth proportional to 8,902.62, 13,332.06 and 7,135.20 is: 10,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.62 : 13,332.06 = 7,135.20 : x
  2. Step 2: Convert to fraction form
    8,902.62/13,332.06 = 7,135.20/x
  3. Step 3: Cross multiply
    8,902.62x = 13,332.06 × 7,135.20
  4. Step 4: Simplify right side
    8,902.62x = 95,126,914.51
  5. Step 5: Solve for x
    x = 95,126,914.51/8,902.62
  6. Step 6: Final answer
    x = 10,685.27

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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.