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Finding the Fourth Proportional to 10,086.66, 15,118.78 and 7,613.46

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Solution

The fourth proportional to 10,086.66, 15,118.78 and 7,613.46 is: 11,411.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,086.66 : 15,118.78 = 7,613.46 : x
  2. Step 2: Convert to fraction form
    10,086.66/15,118.78 = 7,613.46/x
  3. Step 3: Cross multiply
    10,086.66x = 15,118.78 × 7,613.46
  4. Step 4: Simplify right side
    10,086.66x = 115,106,226.78
  5. Step 5: Solve for x
    x = 115,106,226.78/10,086.66
  6. Step 6: Final answer
    x = 11,411.73

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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.