Home / 15,813.30-23,711.96-5,279.66

Finding the Fourth Proportional to 15,813.30, 23,711.96 and 5,279.66

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Solution

The fourth proportional to 15,813.30, 23,711.96 and 5,279.66 is: 7,916.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.30 : 23,711.96 = 5,279.66 : x
  2. Step 2: Convert to fraction form
    15,813.30/23,711.96 = 5,279.66/x
  3. Step 3: Cross multiply
    15,813.30x = 23,711.96 × 5,279.66
  4. Step 4: Simplify right side
    15,813.30x = 125,191,086.73
  5. Step 5: Solve for x
    x = 125,191,086.73/15,813.30
  6. Step 6: Final answer
    x = 7,916.82

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1.5x scale

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.