Home / 12,603.12-17,391.38-6,937.71

Finding the Fourth Proportional to 12,603.12, 17,391.38 and 6,937.71

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Solution

The fourth proportional to 12,603.12, 17,391.38 and 6,937.71 is: 9,573.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.12 : 17,391.38 = 6,937.71 : x
  2. Step 2: Convert to fraction form
    12,603.12/17,391.38 = 6,937.71/x
  3. Step 3: Cross multiply
    12,603.12x = 17,391.38 × 6,937.71
  4. Step 4: Simplify right side
    12,603.12x = 120,656,316.25
  5. Step 5: Solve for x
    x = 120,656,316.25/12,603.12
  6. Step 6: Final answer
    x = 9,573.53

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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.