Home / 18,423.19-27,630.87-5,272.03

Finding the Fourth Proportional to 18,423.19, 27,630.87 and 5,272.03

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Solution

The fourth proportional to 18,423.19, 27,630.87 and 5,272.03 is: 7,906.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.19 : 27,630.87 = 5,272.03 : x
  2. Step 2: Convert to fraction form
    18,423.19/27,630.87 = 5,272.03/x
  3. Step 3: Cross multiply
    18,423.19x = 27,630.87 × 5,272.03
  4. Step 4: Simplify right side
    18,423.19x = 145,670,775.57
  5. Step 5: Solve for x
    x = 145,670,775.57/18,423.19
  6. Step 6: Final answer
    x = 7,906.92

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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.