Home / 13,251.28-18,286.68-7,587.04

Finding the Fourth Proportional to 13,251.28, 18,286.68 and 7,587.04

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Solution

The fourth proportional to 13,251.28, 18,286.68 and 7,587.04 is: 10,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.28 : 18,286.68 = 7,587.04 : x
  2. Step 2: Convert to fraction form
    13,251.28/18,286.68 = 7,587.04/x
  3. Step 3: Cross multiply
    13,251.28x = 18,286.68 × 7,587.04
  4. Step 4: Simplify right side
    13,251.28x = 138,741,772.63
  5. Step 5: Solve for x
    x = 138,741,772.63/13,251.28
  6. Step 6: Final answer
    x = 10,470.07

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1.5x scale

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.