Home / 18,326.28-25,290.72-11,248.68

Finding the Fourth Proportional to 18,326.28, 25,290.72 and 11,248.68

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Solution

The fourth proportional to 18,326.28, 25,290.72 and 11,248.68 is: 15,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.28 : 25,290.72 = 11,248.68 : x
  2. Step 2: Convert to fraction form
    18,326.28/25,290.72 = 11,248.68/x
  3. Step 3: Cross multiply
    18,326.28x = 25,290.72 × 11,248.68
  4. Step 4: Simplify right side
    18,326.28x = 284,487,216.25
  5. Step 5: Solve for x
    x = 284,487,216.25/18,326.28
  6. Step 6: Final answer
    x = 15,523.46

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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.