Home / 13,316.88-18,377.46-7,348.80

Finding the Fourth Proportional to 13,316.88, 18,377.46 and 7,348.80

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Solution

The fourth proportional to 13,316.88, 18,377.46 and 7,348.80 is: 10,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.88 : 18,377.46 = 7,348.80 : x
  2. Step 2: Convert to fraction form
    13,316.88/18,377.46 = 7,348.80/x
  3. Step 3: Cross multiply
    13,316.88x = 18,377.46 × 7,348.80
  4. Step 4: Simplify right side
    13,316.88x = 135,052,278.05
  5. Step 5: Solve for x
    x = 135,052,278.05/13,316.88
  6. Step 6: Final answer
    x = 10,141.44

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Double scale
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Similar ratio
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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.