Home / 16,486.85-24,712.85-5,390.55

Finding the Fourth Proportional to 16,486.85, 24,712.85 and 5,390.55

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Solution

The fourth proportional to 16,486.85, 24,712.85 and 5,390.55 is: 8,080.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.85 : 24,712.85 = 5,390.55 : x
  2. Step 2: Convert to fraction form
    16,486.85/24,712.85 = 5,390.55/x
  3. Step 3: Cross multiply
    16,486.85x = 24,712.85 × 5,390.55
  4. Step 4: Simplify right side
    16,486.85x = 133,215,826.61
  5. Step 5: Solve for x
    x = 133,215,826.61/16,486.85
  6. Step 6: Final answer
    x = 8,080.13

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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.