Home / 10,147.92-15,221.88-2,752.35

Finding the Fourth Proportional to 10,147.92, 15,221.88 and 2,752.35

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Solution

The fourth proportional to 10,147.92, 15,221.88 and 2,752.35 is: 4,128.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.92 : 15,221.88 = 2,752.35 : x
  2. Step 2: Convert to fraction form
    10,147.92/15,221.88 = 2,752.35/x
  3. Step 3: Cross multiply
    10,147.92x = 15,221.88 × 2,752.35
  4. Step 4: Simplify right side
    10,147.92x = 41,895,941.42
  5. Step 5: Solve for x
    x = 41,895,941.42/10,147.92
  6. Step 6: Final answer
    x = 4,128.53

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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.