Home / 19,760.80-29,635.44-7,445.92

Finding the Fourth Proportional to 19,760.80, 29,635.44 and 7,445.92

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Solution

The fourth proportional to 19,760.80, 29,635.44 and 7,445.92 is: 11,166.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.80 : 29,635.44 = 7,445.92 : x
  2. Step 2: Convert to fraction form
    19,760.80/29,635.44 = 7,445.92/x
  3. Step 3: Cross multiply
    19,760.80x = 29,635.44 × 7,445.92
  4. Step 4: Simplify right side
    19,760.80x = 220,663,115.40
  5. Step 5: Solve for x
    x = 220,663,115.40/19,760.80
  6. Step 6: Final answer
    x = 11,166.71

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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.