Home / 18,734.64-28,119-9,976.92

Finding the Fourth Proportional to 18,734.64, 28,119 and 9,976.92

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Solution

The fourth proportional to 18,734.64, 28,119 and 9,976.92 is: 14,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,734.64 : 28,119 = 9,976.92 : x
  2. Step 2: Convert to fraction form
    18,734.64/28,119 = 9,976.92/x
  3. Step 3: Cross multiply
    18,734.64x = 28,119 × 9,976.92
  4. Step 4: Simplify right side
    18,734.64x = 280,541,013.48
  5. Step 5: Solve for x
    x = 280,541,013.48/18,734.64
  6. Step 6: Final answer
    x = 14,974.45

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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.