Home / 9,819.12-13,550.88-5,627.36

Finding the Fourth Proportional to 9,819.12, 13,550.88 and 5,627.36

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Solution

The fourth proportional to 9,819.12, 13,550.88 and 5,627.36 is: 7,766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.12 : 13,550.88 = 5,627.36 : x
  2. Step 2: Convert to fraction form
    9,819.12/13,550.88 = 5,627.36/x
  3. Step 3: Cross multiply
    9,819.12x = 13,550.88 × 5,627.36
  4. Step 4: Simplify right side
    9,819.12x = 76,255,680.08
  5. Step 5: Solve for x
    x = 76,255,680.08/9,819.12
  6. Step 6: Final answer
    x = 7,766.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.