Home / 18,747.38-28,134.98-8,886.68

Finding the Fourth Proportional to 18,747.38, 28,134.98 and 8,886.68

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Solution

The fourth proportional to 18,747.38, 28,134.98 and 8,886.68 is: 13,336.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.38 : 28,134.98 = 8,886.68 : x
  2. Step 2: Convert to fraction form
    18,747.38/28,134.98 = 8,886.68/x
  3. Step 3: Cross multiply
    18,747.38x = 28,134.98 × 8,886.68
  4. Step 4: Simplify right side
    18,747.38x = 250,026,378.96
  5. Step 5: Solve for x
    x = 250,026,378.96/18,747.38
  6. Step 6: Final answer
    x = 13,336.61

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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.