Home / 13,259.60-18,294.36-8,227.76

Finding the Fourth Proportional to 13,259.60, 18,294.36 and 8,227.76

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Solution

The fourth proportional to 13,259.60, 18,294.36 and 8,227.76 is: 11,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,259.60 : 18,294.36 = 8,227.76 : x
  2. Step 2: Convert to fraction form
    13,259.60/18,294.36 = 8,227.76/x
  3. Step 3: Cross multiply
    13,259.60x = 18,294.36 × 8,227.76
  4. Step 4: Simplify right side
    13,259.60x = 150,521,603.43
  5. Step 5: Solve for x
    x = 150,521,603.43/13,259.60
  6. Step 6: Final answer
    x = 11,351.90

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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.