Home / 12,511.49-17,263.11-7,474.95

Finding the Fourth Proportional to 12,511.49, 17,263.11 and 7,474.95

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Solution

The fourth proportional to 12,511.49, 17,263.11 and 7,474.95 is: 10,313.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.49 : 17,263.11 = 7,474.95 : x
  2. Step 2: Convert to fraction form
    12,511.49/17,263.11 = 7,474.95/x
  3. Step 3: Cross multiply
    12,511.49x = 17,263.11 × 7,474.95
  4. Step 4: Simplify right side
    12,511.49x = 129,040,884.09
  5. Step 5: Solve for x
    x = 129,040,884.09/12,511.49
  6. Step 6: Final answer
    x = 10,313.79

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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.