Home / 13,764.74-20,640.12-5,864.20

Finding the Fourth Proportional to 13,764.74, 20,640.12 and 5,864.20

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Solution

The fourth proportional to 13,764.74, 20,640.12 and 5,864.20 is: 8,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.74 : 20,640.12 = 5,864.20 : x
  2. Step 2: Convert to fraction form
    13,764.74/20,640.12 = 5,864.20/x
  3. Step 3: Cross multiply
    13,764.74x = 20,640.12 × 5,864.20
  4. Step 4: Simplify right side
    13,764.74x = 121,037,791.70
  5. Step 5: Solve for x
    x = 121,037,791.70/13,764.74
  6. Step 6: Final answer
    x = 8,793.32

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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.