Home / 15,024.11-20,731.43-8,308.80

Finding the Fourth Proportional to 15,024.11, 20,731.43 and 8,308.80

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Solution

The fourth proportional to 15,024.11, 20,731.43 and 8,308.80 is: 11,465.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.11 : 20,731.43 = 8,308.80 : x
  2. Step 2: Convert to fraction form
    15,024.11/20,731.43 = 8,308.80/x
  3. Step 3: Cross multiply
    15,024.11x = 20,731.43 × 8,308.80
  4. Step 4: Simplify right side
    15,024.11x = 172,253,326.36
  5. Step 5: Solve for x
    x = 172,253,326.36/15,024.11
  6. Step 6: Final answer
    x = 11,465.13

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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.