Home / 12,398.13-18,589.11-4,499.17

Finding the Fourth Proportional to 12,398.13, 18,589.11 and 4,499.17

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Solution

The fourth proportional to 12,398.13, 18,589.11 and 4,499.17 is: 6,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.13 : 18,589.11 = 4,499.17 : x
  2. Step 2: Convert to fraction form
    12,398.13/18,589.11 = 4,499.17/x
  3. Step 3: Cross multiply
    12,398.13x = 18,589.11 × 4,499.17
  4. Step 4: Simplify right side
    12,398.13x = 83,635,566.04
  5. Step 5: Solve for x
    x = 83,635,566.04/12,398.13
  6. Step 6: Final answer
    x = 6,745.82

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1.5x scale

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.