Home / 12,617.30-17,403.54-7,893.38

Finding the Fourth Proportional to 12,617.30, 17,403.54 and 7,893.38

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Solution

The fourth proportional to 12,617.30, 17,403.54 and 7,893.38 is: 10,887.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617.30 : 17,403.54 = 7,893.38 : x
  2. Step 2: Convert to fraction form
    12,617.30/17,403.54 = 7,893.38/x
  3. Step 3: Cross multiply
    12,617.30x = 17,403.54 × 7,893.38
  4. Step 4: Simplify right side
    12,617.30x = 137,372,754.57
  5. Step 5: Solve for x
    x = 137,372,754.57/12,617.30
  6. Step 6: Final answer
    x = 10,887.65

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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.