Home / 10,872.52-16,308.78-4,301.80

Finding the Fourth Proportional to 10,872.52, 16,308.78 and 4,301.80

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Solution

The fourth proportional to 10,872.52, 16,308.78 and 4,301.80 is: 6,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.52 : 16,308.78 = 4,301.80 : x
  2. Step 2: Convert to fraction form
    10,872.52/16,308.78 = 4,301.80/x
  3. Step 3: Cross multiply
    10,872.52x = 16,308.78 × 4,301.80
  4. Step 4: Simplify right side
    10,872.52x = 70,157,109.80
  5. Step 5: Solve for x
    x = 70,157,109.80/10,872.52
  6. Step 6: Final answer
    x = 6,452.70

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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.