Home / 12,588.92-17,372.76-6,999.92

Finding the Fourth Proportional to 12,588.92, 17,372.76 and 6,999.92

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Solution

The fourth proportional to 12,588.92, 17,372.76 and 6,999.92 is: 9,659.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,588.92 : 17,372.76 = 6,999.92 : x
  2. Step 2: Convert to fraction form
    12,588.92/17,372.76 = 6,999.92/x
  3. Step 3: Cross multiply
    12,588.92x = 17,372.76 × 6,999.92
  4. Step 4: Simplify right side
    12,588.92x = 121,607,930.18
  5. Step 5: Solve for x
    x = 121,607,930.18/12,588.92
  6. Step 6: Final answer
    x = 9,659.92

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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.