Home / 12,511.20-17,265.06-7,474.29

Finding the Fourth Proportional to 12,511.20, 17,265.06 and 7,474.29

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Solution

The fourth proportional to 12,511.20, 17,265.06 and 7,474.29 is: 10,314.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.20 : 17,265.06 = 7,474.29 : x
  2. Step 2: Convert to fraction form
    12,511.20/17,265.06 = 7,474.29/x
  3. Step 3: Cross multiply
    12,511.20x = 17,265.06 × 7,474.29
  4. Step 4: Simplify right side
    12,511.20x = 129,044,065.31
  5. Step 5: Solve for x
    x = 129,044,065.31/12,511.20
  6. Step 6: Final answer
    x = 10,314.28

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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.