Home / 10,279.72-15,419.58-2,488.53

Finding the Fourth Proportional to 10,279.72, 15,419.58 and 2,488.53

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Solution

The fourth proportional to 10,279.72, 15,419.58 and 2,488.53 is: 3,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279.72 : 15,419.58 = 2,488.53 : x
  2. Step 2: Convert to fraction form
    10,279.72/15,419.58 = 2,488.53/x
  3. Step 3: Cross multiply
    10,279.72x = 15,419.58 × 2,488.53
  4. Step 4: Simplify right side
    10,279.72x = 38,372,087.42
  5. Step 5: Solve for x
    x = 38,372,087.42/10,279.72
  6. Step 6: Final answer
    x = 3,732.80

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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.