Home / 12,512.20-17,266.44-7,475.29

Finding the Fourth Proportional to 12,512.20, 17,266.44 and 7,475.29

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Solution

The fourth proportional to 12,512.20, 17,266.44 and 7,475.29 is: 10,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.20 : 17,266.44 = 7,475.29 : x
  2. Step 2: Convert to fraction form
    12,512.20/17,266.44 = 7,475.29/x
  3. Step 3: Cross multiply
    12,512.20x = 17,266.44 × 7,475.29
  4. Step 4: Simplify right side
    12,512.20x = 129,071,646.27
  5. Step 5: Solve for x
    x = 129,071,646.27/12,512.20
  6. Step 6: Final answer
    x = 10,315.66

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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.