Home / 8,269.31-11,407.10-5,238.88

Finding the Fourth Proportional to 8,269.31, 11,407.10 and 5,238.88

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Solution

The fourth proportional to 8,269.31, 11,407.10 and 5,238.88 is: 7,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.31 : 11,407.10 = 5,238.88 : x
  2. Step 2: Convert to fraction form
    8,269.31/11,407.10 = 5,238.88/x
  3. Step 3: Cross multiply
    8,269.31x = 11,407.10 × 5,238.88
  4. Step 4: Simplify right side
    8,269.31x = 59,760,428.05
  5. Step 5: Solve for x
    x = 59,760,428.05/8,269.31
  6. Step 6: Final answer
    x = 7,226.77

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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.