Home / 18,488.13-25,523.01-11,418.64

Finding the Fourth Proportional to 18,488.13, 25,523.01 and 11,418.64

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Solution

The fourth proportional to 18,488.13, 25,523.01 and 11,418.64 is: 15,763.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.13 : 25,523.01 = 11,418.64 : x
  2. Step 2: Convert to fraction form
    18,488.13/25,523.01 = 11,418.64/x
  3. Step 3: Cross multiply
    18,488.13x = 25,523.01 × 11,418.64
  4. Step 4: Simplify right side
    18,488.13x = 291,438,062.91
  5. Step 5: Solve for x
    x = 291,438,062.91/18,488.13
  6. Step 6: Final answer
    x = 15,763.52

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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.