Home / 18,327.60-27,491.13-5,180.09

Finding the Fourth Proportional to 18,327.60, 27,491.13 and 5,180.09

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Solution

The fourth proportional to 18,327.60, 27,491.13 and 5,180.09 is: 7,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.60 : 27,491.13 = 5,180.09 : x
  2. Step 2: Convert to fraction form
    18,327.60/27,491.13 = 5,180.09/x
  3. Step 3: Cross multiply
    18,327.60x = 27,491.13 × 5,180.09
  4. Step 4: Simplify right side
    18,327.60x = 142,406,390.15
  5. Step 5: Solve for x
    x = 142,406,390.15/18,327.60
  6. Step 6: Final answer
    x = 7,770.05

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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.