Home / 15,027.27-20,737.46-8,312.37

Finding the Fourth Proportional to 15,027.27, 20,737.46 and 8,312.37

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Solution

The fourth proportional to 15,027.27, 20,737.46 and 8,312.37 is: 11,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,027.27 : 20,737.46 = 8,312.37 : x
  2. Step 2: Convert to fraction form
    15,027.27/20,737.46 = 8,312.37/x
  3. Step 3: Cross multiply
    15,027.27x = 20,737.46 × 8,312.37
  4. Step 4: Simplify right side
    15,027.27x = 172,377,398.82
  5. Step 5: Solve for x
    x = 172,377,398.82/15,027.27
  6. Step 6: Final answer
    x = 11,470.97

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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.