Home / 12,511.19-17,262.60-7,474.61

Finding the Fourth Proportional to 12,511.19, 17,262.60 and 7,474.61

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Solution

The fourth proportional to 12,511.19, 17,262.60 and 7,474.61 is: 10,313.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.19 : 17,262.60 = 7,474.61 : x
  2. Step 2: Convert to fraction form
    12,511.19/17,262.60 = 7,474.61/x
  3. Step 3: Cross multiply
    12,511.19x = 17,262.60 × 7,474.61
  4. Step 4: Simplify right side
    12,511.19x = 129,031,202.59
  5. Step 5: Solve for x
    x = 129,031,202.59/12,511.19
  6. Step 6: Final answer
    x = 10,313.26

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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.