Home / 18,219.08-27,332.49-5,742.70

Finding the Fourth Proportional to 18,219.08, 27,332.49 and 5,742.70

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Solution

The fourth proportional to 18,219.08, 27,332.49 and 5,742.70 is: 8,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.08 : 27,332.49 = 5,742.70 : x
  2. Step 2: Convert to fraction form
    18,219.08/27,332.49 = 5,742.70/x
  3. Step 3: Cross multiply
    18,219.08x = 27,332.49 × 5,742.70
  4. Step 4: Simplify right side
    18,219.08x = 156,962,211.22
  5. Step 5: Solve for x
    x = 156,962,211.22/18,219.08
  6. Step 6: Final answer
    x = 8,615.27

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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.