Home / 12,540.88-17,301.90-8,770.06

Finding the Fourth Proportional to 12,540.88, 17,301.90 and 8,770.06

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Solution

The fourth proportional to 12,540.88, 17,301.90 and 8,770.06 is: 12,099.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.88 : 17,301.90 = 8,770.06 : x
  2. Step 2: Convert to fraction form
    12,540.88/17,301.90 = 8,770.06/x
  3. Step 3: Cross multiply
    12,540.88x = 17,301.90 × 8,770.06
  4. Step 4: Simplify right side
    12,540.88x = 151,738,701.11
  5. Step 5: Solve for x
    x = 151,738,701.11/12,540.88
  6. Step 6: Final answer
    x = 12,099.53

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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.