Home / 12,248.20-18,233.78-12,175.30

Finding the Fourth Proportional to 12,248.20, 18,233.78 and 12,175.30

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Solution

The fourth proportional to 12,248.20, 18,233.78 and 12,175.30 is: 18,125.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.20 : 18,233.78 = 12,175.30 : x
  2. Step 2: Convert to fraction form
    12,248.20/18,233.78 = 12,175.30/x
  3. Step 3: Cross multiply
    12,248.20x = 18,233.78 × 12,175.30
  4. Step 4: Simplify right side
    12,248.20x = 222,001,741.63
  5. Step 5: Solve for x
    x = 222,001,741.63/12,248.20
  6. Step 6: Final answer
    x = 18,125.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.