Home / 8,785.56-13,179.78-3,590.04

Finding the Fourth Proportional to 8,785.56, 13,179.78 and 3,590.04

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Solution

The fourth proportional to 8,785.56, 13,179.78 and 3,590.04 is: 5,385.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.56 : 13,179.78 = 3,590.04 : x
  2. Step 2: Convert to fraction form
    8,785.56/13,179.78 = 3,590.04/x
  3. Step 3: Cross multiply
    8,785.56x = 13,179.78 × 3,590.04
  4. Step 4: Simplify right side
    8,785.56x = 47,315,937.39
  5. Step 5: Solve for x
    x = 47,315,937.39/8,785.56
  6. Step 6: Final answer
    x = 5,385.65

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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.