Home / 10,417.28-15,625.91-5,221.94

Finding the Fourth Proportional to 10,417.28, 15,625.91 and 5,221.94

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Solution

The fourth proportional to 10,417.28, 15,625.91 and 5,221.94 is: 7,832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,417.28 : 15,625.91 = 5,221.94 : x
  2. Step 2: Convert to fraction form
    10,417.28/15,625.91 = 5,221.94/x
  3. Step 3: Cross multiply
    10,417.28x = 15,625.91 × 5,221.94
  4. Step 4: Simplify right side
    10,417.28x = 81,597,499.39
  5. Step 5: Solve for x
    x = 81,597,499.39/10,417.28
  6. Step 6: Final answer
    x = 7,832.90

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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.