Home / 12,639.68-17,437.22-7,601

Finding the Fourth Proportional to 12,639.68, 17,437.22 and 7,601

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Solution

The fourth proportional to 12,639.68, 17,437.22 and 7,601 is: 10,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,639.68 : 17,437.22 = 7,601 : x
  2. Step 2: Convert to fraction form
    12,639.68/17,437.22 = 7,601/x
  3. Step 3: Cross multiply
    12,639.68x = 17,437.22 × 7,601
  4. Step 4: Simplify right side
    12,639.68x = 132,540,309.22
  5. Step 5: Solve for x
    x = 132,540,309.22/12,639.68
  6. Step 6: Final answer
    x = 10,486.05

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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.