Home / 12,343.20-17,032.80-7,626.72

Finding the Fourth Proportional to 12,343.20, 17,032.80 and 7,626.72

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Solution

The fourth proportional to 12,343.20, 17,032.80 and 7,626.72 is: 10,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.20 : 17,032.80 = 7,626.72 : x
  2. Step 2: Convert to fraction form
    12,343.20/17,032.80 = 7,626.72/x
  3. Step 3: Cross multiply
    12,343.20x = 17,032.80 × 7,626.72
  4. Step 4: Simplify right side
    12,343.20x = 129,904,396.42
  5. Step 5: Solve for x
    x = 129,904,396.42/12,343.20
  6. Step 6: Final answer
    x = 10,524.37

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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.