Home / 18,854.19-28,279.44-9,490.47

Finding the Fourth Proportional to 18,854.19, 28,279.44 and 9,490.47

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Solution

The fourth proportional to 18,854.19, 28,279.44 and 9,490.47 is: 14,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.19 : 28,279.44 = 9,490.47 : x
  2. Step 2: Convert to fraction form
    18,854.19/28,279.44 = 9,490.47/x
  3. Step 3: Cross multiply
    18,854.19x = 28,279.44 × 9,490.47
  4. Step 4: Simplify right side
    18,854.19x = 268,385,176.94
  5. Step 5: Solve for x
    x = 268,385,176.94/18,854.19
  6. Step 6: Final answer
    x = 14,234.78

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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.