Home / 18,538.60-25,587.30-12,251.56

Finding the Fourth Proportional to 18,538.60, 25,587.30 and 12,251.56

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Solution

The fourth proportional to 18,538.60, 25,587.30 and 12,251.56 is: 16,909.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.60 : 25,587.30 = 12,251.56 : x
  2. Step 2: Convert to fraction form
    18,538.60/25,587.30 = 12,251.56/x
  3. Step 3: Cross multiply
    18,538.60x = 25,587.30 × 12,251.56
  4. Step 4: Simplify right side
    18,538.60x = 313,484,341.19
  5. Step 5: Solve for x
    x = 313,484,341.19/18,538.60
  6. Step 6: Final answer
    x = 16,909.82

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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.