Home / 13,251.48-18,287.97-8,767.47

Finding the Fourth Proportional to 13,251.48, 18,287.97 and 8,767.47

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Solution

The fourth proportional to 13,251.48, 18,287.97 and 8,767.47 is: 12,099.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.48 : 18,287.97 = 8,767.47 : x
  2. Step 2: Convert to fraction form
    13,251.48/18,287.97 = 8,767.47/x
  3. Step 3: Cross multiply
    13,251.48x = 18,287.97 × 8,767.47
  4. Step 4: Simplify right side
    13,251.48x = 160,339,228.34
  5. Step 5: Solve for x
    x = 160,339,228.34/13,251.48
  6. Step 6: Final answer
    x = 12,099.72

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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.