Home / 13,248.80-18,264.10-9,257.54

Finding the Fourth Proportional to 13,248.80, 18,264.10 and 9,257.54

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Solution

The fourth proportional to 13,248.80, 18,264.10 and 9,257.54 is: 12,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.80 : 18,264.10 = 9,257.54 : x
  2. Step 2: Convert to fraction form
    13,248.80/18,264.10 = 9,257.54/x
  3. Step 3: Cross multiply
    13,248.80x = 18,264.10 × 9,257.54
  4. Step 4: Simplify right side
    13,248.80x = 169,080,636.31
  5. Step 5: Solve for x
    x = 169,080,636.31/13,248.80
  6. Step 6: Final answer
    x = 12,761.96

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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.