Home / 19,001.72-28,500.86-8,472.24

Finding the Fourth Proportional to 19,001.72, 28,500.86 and 8,472.24

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Solution

The fourth proportional to 19,001.72, 28,500.86 and 8,472.24 is: 12,707.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.72 : 28,500.86 = 8,472.24 : x
  2. Step 2: Convert to fraction form
    19,001.72/28,500.86 = 8,472.24/x
  3. Step 3: Cross multiply
    19,001.72x = 28,500.86 × 8,472.24
  4. Step 4: Simplify right side
    19,001.72x = 241,466,126.13
  5. Step 5: Solve for x
    x = 241,466,126.13/19,001.72
  6. Step 6: Final answer
    x = 12,707.59

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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.