Home / 18,327.63-27,491.56-5,180.12

Finding the Fourth Proportional to 18,327.63, 27,491.56 and 5,180.12

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Solution

The fourth proportional to 18,327.63, 27,491.56 and 5,180.12 is: 7,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.63 : 27,491.56 = 5,180.12 : x
  2. Step 2: Convert to fraction form
    18,327.63/27,491.56 = 5,180.12/x
  3. Step 3: Cross multiply
    18,327.63x = 27,491.56 × 5,180.12
  4. Step 4: Simplify right side
    18,327.63x = 142,409,429.38
  5. Step 5: Solve for x
    x = 142,409,429.38/18,327.63
  6. Step 6: Final answer
    x = 7,770.20

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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.