Home / 11,251.70-15,526.87-6,471.28

Finding the Fourth Proportional to 11,251.70, 15,526.87 and 6,471.28

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Solution

The fourth proportional to 11,251.70, 15,526.87 and 6,471.28 is: 8,930.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.70 : 15,526.87 = 6,471.28 : x
  2. Step 2: Convert to fraction form
    11,251.70/15,526.87 = 6,471.28/x
  3. Step 3: Cross multiply
    11,251.70x = 15,526.87 × 6,471.28
  4. Step 4: Simplify right side
    11,251.70x = 100,478,645.66
  5. Step 5: Solve for x
    x = 100,478,645.66/11,251.70
  6. Step 6: Final answer
    x = 8,930.09

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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.