Home / 10,931.18-16,397.96-4,005.68

Finding the Fourth Proportional to 10,931.18, 16,397.96 and 4,005.68

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Solution

The fourth proportional to 10,931.18, 16,397.96 and 4,005.68 is: 6,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.18 : 16,397.96 = 4,005.68 : x
  2. Step 2: Convert to fraction form
    10,931.18/16,397.96 = 4,005.68/x
  3. Step 3: Cross multiply
    10,931.18x = 16,397.96 × 4,005.68
  4. Step 4: Simplify right side
    10,931.18x = 65,684,878.39
  5. Step 5: Solve for x
    x = 65,684,878.39/10,931.18
  6. Step 6: Final answer
    x = 6,008.95

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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.