Home / 18,789.47-25,934.10-11,240.27

Finding the Fourth Proportional to 18,789.47, 25,934.10 and 11,240.27

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Solution

The fourth proportional to 18,789.47, 25,934.10 and 11,240.27 is: 15,514.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.47 : 25,934.10 = 11,240.27 : x
  2. Step 2: Convert to fraction form
    18,789.47/25,934.10 = 11,240.27/x
  3. Step 3: Cross multiply
    18,789.47x = 25,934.10 × 11,240.27
  4. Step 4: Simplify right side
    18,789.47x = 291,506,286.21
  5. Step 5: Solve for x
    x = 291,506,286.21/18,789.47
  6. Step 6: Final answer
    x = 15,514.34

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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.