Home / 12,252.25-18,378.38-5,326.75

Finding the Fourth Proportional to 12,252.25, 18,378.38 and 5,326.75

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Solution

The fourth proportional to 12,252.25, 18,378.38 and 5,326.75 is: 7,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.25 : 18,378.38 = 5,326.75 : x
  2. Step 2: Convert to fraction form
    12,252.25/18,378.38 = 5,326.75/x
  3. Step 3: Cross multiply
    12,252.25x = 18,378.38 × 5,326.75
  4. Step 4: Simplify right side
    12,252.25x = 97,897,035.67
  5. Step 5: Solve for x
    x = 97,897,035.67/12,252.25
  6. Step 6: Final answer
    x = 7,990.13

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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.