Home / 15,044.79-20,760.15-8,329.50

Finding the Fourth Proportional to 15,044.79, 20,760.15 and 8,329.50

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Solution

The fourth proportional to 15,044.79, 20,760.15 and 8,329.50 is: 11,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.79 : 20,760.15 = 8,329.50 : x
  2. Step 2: Convert to fraction form
    15,044.79/20,760.15 = 8,329.50/x
  3. Step 3: Cross multiply
    15,044.79x = 20,760.15 × 8,329.50
  4. Step 4: Simplify right side
    15,044.79x = 172,921,669.43
  5. Step 5: Solve for x
    x = 172,921,669.43/15,044.79
  6. Step 6: Final answer
    x = 11,493.79

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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.