Home / 13,105.12-18,073.20-8,627.44

Finding the Fourth Proportional to 13,105.12, 18,073.20 and 8,627.44

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Solution

The fourth proportional to 13,105.12, 18,073.20 and 8,627.44 is: 11,898.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.12 : 18,073.20 = 8,627.44 : x
  2. Step 2: Convert to fraction form
    13,105.12/18,073.20 = 8,627.44/x
  3. Step 3: Cross multiply
    13,105.12x = 18,073.20 × 8,627.44
  4. Step 4: Simplify right side
    13,105.12x = 155,925,448.61
  5. Step 5: Solve for x
    x = 155,925,448.61/13,105.12
  6. Step 6: Final answer
    x = 11,898.06

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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.