Home / 18,789.57-25,964.15-13,475.97

Finding the Fourth Proportional to 18,789.57, 25,964.15 and 13,475.97

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Solution

The fourth proportional to 18,789.57, 25,964.15 and 13,475.97 is: 18,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.57 : 25,964.15 = 13,475.97 : x
  2. Step 2: Convert to fraction form
    18,789.57/25,964.15 = 13,475.97/x
  3. Step 3: Cross multiply
    18,789.57x = 25,964.15 × 13,475.97
  4. Step 4: Simplify right side
    18,789.57x = 349,892,039.10
  5. Step 5: Solve for x
    x = 349,892,039.10/18,789.57
  6. Step 6: Final answer
    x = 18,621.61

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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.