Home / 12,248.98-18,318.12-9,437.47

Finding the Fourth Proportional to 12,248.98, 18,318.12 and 9,437.47

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Solution

The fourth proportional to 12,248.98, 18,318.12 and 9,437.47 is: 14,113.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.98 : 18,318.12 = 9,437.47 : x
  2. Step 2: Convert to fraction form
    12,248.98/18,318.12 = 9,437.47/x
  3. Step 3: Cross multiply
    12,248.98x = 18,318.12 × 9,437.47
  4. Step 4: Simplify right side
    12,248.98x = 172,876,626.77
  5. Step 5: Solve for x
    x = 172,876,626.77/12,248.98
  6. Step 6: Final answer
    x = 14,113.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.