Home / 13,242.92-18,276.21-8,208.13

Finding the Fourth Proportional to 13,242.92, 18,276.21 and 8,208.13

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Solution

The fourth proportional to 13,242.92, 18,276.21 and 8,208.13 is: 11,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.92 : 18,276.21 = 8,208.13 : x
  2. Step 2: Convert to fraction form
    13,242.92/18,276.21 = 8,208.13/x
  3. Step 3: Cross multiply
    13,242.92x = 18,276.21 × 8,208.13
  4. Step 4: Simplify right side
    13,242.92x = 150,013,507.59
  5. Step 5: Solve for x
    x = 150,013,507.59/13,242.92
  6. Step 6: Final answer
    x = 11,327.83

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Double scale
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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.