Home / 11,711.61-16,160.66-6,931.76

Finding the Fourth Proportional to 11,711.61, 16,160.66 and 6,931.76

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Solution

The fourth proportional to 11,711.61, 16,160.66 and 6,931.76 is: 9,565.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.61 : 16,160.66 = 6,931.76 : x
  2. Step 2: Convert to fraction form
    11,711.61/16,160.66 = 6,931.76/x
  3. Step 3: Cross multiply
    11,711.61x = 16,160.66 × 6,931.76
  4. Step 4: Simplify right side
    11,711.61x = 112,021,761.70
  5. Step 5: Solve for x
    x = 112,021,761.70/11,711.61
  6. Step 6: Final answer
    x = 9,565.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.