Home / 11,139.60-16,711.76-4,565.77

Finding the Fourth Proportional to 11,139.60, 16,711.76 and 4,565.77

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Solution

The fourth proportional to 11,139.60, 16,711.76 and 4,565.77 is: 6,849.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.60 : 16,711.76 = 4,565.77 : x
  2. Step 2: Convert to fraction form
    11,139.60/16,711.76 = 4,565.77/x
  3. Step 3: Cross multiply
    11,139.60x = 16,711.76 × 4,565.77
  4. Step 4: Simplify right side
    11,139.60x = 76,302,052.46
  5. Step 5: Solve for x
    x = 76,302,052.46/11,139.60
  6. Step 6: Final answer
    x = 6,849.62

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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.