Home / 11,711.38-16,156.29-6,740.50

Finding the Fourth Proportional to 11,711.38, 16,156.29 and 6,740.50

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Solution

The fourth proportional to 11,711.38, 16,156.29 and 6,740.50 is: 9,298.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.38 : 16,156.29 = 6,740.50 : x
  2. Step 2: Convert to fraction form
    11,711.38/16,156.29 = 6,740.50/x
  3. Step 3: Cross multiply
    11,711.38x = 16,156.29 × 6,740.50
  4. Step 4: Simplify right side
    11,711.38x = 108,901,472.75
  5. Step 5: Solve for x
    x = 108,901,472.75/11,711.38
  6. Step 6: Final answer
    x = 9,298.77

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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.