Home / 13,491.39-20,247.48-8,810.13

Finding the Fourth Proportional to 13,491.39, 20,247.48 and 8,810.13

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Solution

The fourth proportional to 13,491.39, 20,247.48 and 8,810.13 is: 13,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.39 : 20,247.48 = 8,810.13 : x
  2. Step 2: Convert to fraction form
    13,491.39/20,247.48 = 8,810.13/x
  3. Step 3: Cross multiply
    13,491.39x = 20,247.48 × 8,810.13
  4. Step 4: Simplify right side
    13,491.39x = 178,382,930.97
  5. Step 5: Solve for x
    x = 178,382,930.97/13,491.39
  6. Step 6: Final answer
    x = 13,221.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.