Home / 8,278.92-11,417.10-5,441.28

Finding the Fourth Proportional to 8,278.92, 11,417.10 and 5,441.28

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Solution

The fourth proportional to 8,278.92, 11,417.10 and 5,441.28 is: 7,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.92 : 11,417.10 = 5,441.28 : x
  2. Step 2: Convert to fraction form
    8,278.92/11,417.10 = 5,441.28/x
  3. Step 3: Cross multiply
    8,278.92x = 11,417.10 × 5,441.28
  4. Step 4: Simplify right side
    8,278.92x = 62,123,637.89
  5. Step 5: Solve for x
    x = 62,123,637.89/8,278.92
  6. Step 6: Final answer
    x = 7,503.83

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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.