Home / 12,480.03-17,218.30-8,233.20

Finding the Fourth Proportional to 12,480.03, 17,218.30 and 8,233.20

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Solution

The fourth proportional to 12,480.03, 17,218.30 and 8,233.20 is: 11,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.03 : 17,218.30 = 8,233.20 : x
  2. Step 2: Convert to fraction form
    12,480.03/17,218.30 = 8,233.20/x
  3. Step 3: Cross multiply
    12,480.03x = 17,218.30 × 8,233.20
  4. Step 4: Simplify right side
    12,480.03x = 141,761,707.56
  5. Step 5: Solve for x
    x = 141,761,707.56/12,480.03
  6. Step 6: Final answer
    x = 11,359.08

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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.