Home / 10,688.64-16,046.16-5,071.68

Finding the Fourth Proportional to 10,688.64, 16,046.16 and 5,071.68

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Solution

The fourth proportional to 10,688.64, 16,046.16 and 5,071.68 is: 7,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.64 : 16,046.16 = 5,071.68 : x
  2. Step 2: Convert to fraction form
    10,688.64/16,046.16 = 5,071.68/x
  3. Step 3: Cross multiply
    10,688.64x = 16,046.16 × 5,071.68
  4. Step 4: Simplify right side
    10,688.64x = 81,380,988.75
  5. Step 5: Solve for x
    x = 81,380,988.75/10,688.64
  6. Step 6: Final answer
    x = 7,613.78

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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.