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Finding the Fourth Proportional to 12,610.67, 18,915.97 and 7,614.03

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Solution

The fourth proportional to 12,610.67, 18,915.97 and 7,614.03 is: 11,421.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.67 : 18,915.97 = 7,614.03 : x
  2. Step 2: Convert to fraction form
    12,610.67/18,915.97 = 7,614.03/x
  3. Step 3: Cross multiply
    12,610.67x = 18,915.97 × 7,614.03
  4. Step 4: Simplify right side
    12,610.67x = 144,026,763.06
  5. Step 5: Solve for x
    x = 144,026,763.06/12,610.67
  6. Step 6: Final answer
    x = 11,421.02

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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.