Home / 12,478.08-18,625.73-11,001.88

Finding the Fourth Proportional to 12,478.08, 18,625.73 and 11,001.88

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Solution

The fourth proportional to 12,478.08, 18,625.73 and 11,001.88 is: 16,422.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478.08 : 18,625.73 = 11,001.88 : x
  2. Step 2: Convert to fraction form
    12,478.08/18,625.73 = 11,001.88/x
  3. Step 3: Cross multiply
    12,478.08x = 18,625.73 × 11,001.88
  4. Step 4: Simplify right side
    12,478.08x = 204,918,046.37
  5. Step 5: Solve for x
    x = 204,918,046.37/12,478.08
  6. Step 6: Final answer
    x = 16,422.24

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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.