Home / 10,146.87-15,221.73-3,127.45

Finding the Fourth Proportional to 10,146.87, 15,221.73 and 3,127.45

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Solution

The fourth proportional to 10,146.87, 15,221.73 and 3,127.45 is: 4,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.87 : 15,221.73 = 3,127.45 : x
  2. Step 2: Convert to fraction form
    10,146.87/15,221.73 = 3,127.45/x
  3. Step 3: Cross multiply
    10,146.87x = 15,221.73 × 3,127.45
  4. Step 4: Simplify right side
    10,146.87x = 47,605,195.84
  5. Step 5: Solve for x
    x = 47,605,195.84/10,146.87
  6. Step 6: Final answer
    x = 4,691.61

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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.