Home / 15,044.28-20,763.10-9,079.36

Finding the Fourth Proportional to 15,044.28, 20,763.10 and 9,079.36

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Solution

The fourth proportional to 15,044.28, 20,763.10 and 9,079.36 is: 12,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,044.28 : 20,763.10 = 9,079.36 : x
  2. Step 2: Convert to fraction form
    15,044.28/20,763.10 = 9,079.36/x
  3. Step 3: Cross multiply
    15,044.28x = 20,763.10 × 9,079.36
  4. Step 4: Simplify right side
    15,044.28x = 188,515,659.62
  5. Step 5: Solve for x
    x = 188,515,659.62/15,044.28
  6. Step 6: Final answer
    x = 12,530.72

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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.