Home / 13,589.68-18,747.30-9,054.47

Finding the Fourth Proportional to 13,589.68, 18,747.30 and 9,054.47

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Solution

The fourth proportional to 13,589.68, 18,747.30 and 9,054.47 is: 12,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.68 : 18,747.30 = 9,054.47 : x
  2. Step 2: Convert to fraction form
    13,589.68/18,747.30 = 9,054.47/x
  3. Step 3: Cross multiply
    13,589.68x = 18,747.30 × 9,054.47
  4. Step 4: Simplify right side
    13,589.68x = 169,746,865.43
  5. Step 5: Solve for x
    x = 169,746,865.43/13,589.68
  6. Step 6: Final answer
    x = 12,490.87

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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.