Home / 10,125.28-13,972.48-5,649.24

Finding the Fourth Proportional to 10,125.28, 13,972.48 and 5,649.24

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Solution

The fourth proportional to 10,125.28, 13,972.48 and 5,649.24 is: 7,795.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.28 : 13,972.48 = 5,649.24 : x
  2. Step 2: Convert to fraction form
    10,125.28/13,972.48 = 5,649.24/x
  3. Step 3: Cross multiply
    10,125.28x = 13,972.48 × 5,649.24
  4. Step 4: Simplify right side
    10,125.28x = 78,933,892.92
  5. Step 5: Solve for x
    x = 78,933,892.92/10,125.28
  6. Step 6: Final answer
    x = 7,795.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.