Home / 10,316.55-15,472.50-2,919.03

Finding the Fourth Proportional to 10,316.55, 15,472.50 and 2,919.03

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Solution

The fourth proportional to 10,316.55, 15,472.50 and 2,919.03 is: 4,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.55 : 15,472.50 = 2,919.03 : x
  2. Step 2: Convert to fraction form
    10,316.55/15,472.50 = 2,919.03/x
  3. Step 3: Cross multiply
    10,316.55x = 15,472.50 × 2,919.03
  4. Step 4: Simplify right side
    10,316.55x = 45,164,691.68
  5. Step 5: Solve for x
    x = 45,164,691.68/10,316.55
  6. Step 6: Final answer
    x = 4,377.89

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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.