Home / 15,024.15-20,731.53-8,308.87

Finding the Fourth Proportional to 15,024.15, 20,731.53 and 8,308.87

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Solution

The fourth proportional to 15,024.15, 20,731.53 and 8,308.87 is: 11,465.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.15 : 20,731.53 = 8,308.87 : x
  2. Step 2: Convert to fraction form
    15,024.15/20,731.53 = 8,308.87/x
  3. Step 3: Cross multiply
    15,024.15x = 20,731.53 × 8,308.87
  4. Step 4: Simplify right side
    15,024.15x = 172,255,442.47
  5. Step 5: Solve for x
    x = 172,255,442.47/15,024.15
  6. Step 6: Final answer
    x = 11,465.24

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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.