Home / 13,470.38-20,209.40-4,587.66

Finding the Fourth Proportional to 13,470.38, 20,209.40 and 4,587.66

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Solution

The fourth proportional to 13,470.38, 20,209.40 and 4,587.66 is: 6,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,470.38 : 20,209.40 = 4,587.66 : x
  2. Step 2: Convert to fraction form
    13,470.38/20,209.40 = 4,587.66/x
  3. Step 3: Cross multiply
    13,470.38x = 20,209.40 × 4,587.66
  4. Step 4: Simplify right side
    13,470.38x = 92,713,856.00
  5. Step 5: Solve for x
    x = 92,713,856.00/13,470.38
  6. Step 6: Final answer
    x = 6,882.79

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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.