Home / 10,147.30-15,221.28-2,751.74

Finding the Fourth Proportional to 10,147.30, 15,221.28 and 2,751.74

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Solution

The fourth proportional to 10,147.30, 15,221.28 and 2,751.74 is: 4,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,147.30 : 15,221.28 = 2,751.74 : x
  2. Step 2: Convert to fraction form
    10,147.30/15,221.28 = 2,751.74/x
  3. Step 3: Cross multiply
    10,147.30x = 15,221.28 × 2,751.74
  4. Step 4: Simplify right side
    10,147.30x = 41,885,005.03
  5. Step 5: Solve for x
    x = 41,885,005.03/10,147.30
  6. Step 6: Final answer
    x = 4,127.70

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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.