Home / 15,190.38-20,964.15-8,476.61

Finding the Fourth Proportional to 15,190.38, 20,964.15 and 8,476.61

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Solution

The fourth proportional to 15,190.38, 20,964.15 and 8,476.61 is: 11,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.38 : 20,964.15 = 8,476.61 : x
  2. Step 2: Convert to fraction form
    15,190.38/20,964.15 = 8,476.61/x
  3. Step 3: Cross multiply
    15,190.38x = 20,964.15 × 8,476.61
  4. Step 4: Simplify right side
    15,190.38x = 177,704,818.71
  5. Step 5: Solve for x
    x = 177,704,818.71/15,190.38
  6. Step 6: Final answer
    x = 11,698.51

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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.