Home / 11,227.30-15,489.90-7,251.10

Finding the Fourth Proportional to 11,227.30, 15,489.90 and 7,251.10

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Solution

The fourth proportional to 11,227.30, 15,489.90 and 7,251.10 is: 10,004.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.30 : 15,489.90 = 7,251.10 : x
  2. Step 2: Convert to fraction form
    11,227.30/15,489.90 = 7,251.10/x
  3. Step 3: Cross multiply
    11,227.30x = 15,489.90 × 7,251.10
  4. Step 4: Simplify right side
    11,227.30x = 112,318,813.89
  5. Step 5: Solve for x
    x = 112,318,813.89/11,227.30
  6. Step 6: Final answer
    x = 10,004.08

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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.