Home / 9,199.57-12,694.96-5,220.58

Finding the Fourth Proportional to 9,199.57, 12,694.96 and 5,220.58

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Solution

The fourth proportional to 9,199.57, 12,694.96 and 5,220.58 is: 7,204.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.57 : 12,694.96 = 5,220.58 : x
  2. Step 2: Convert to fraction form
    9,199.57/12,694.96 = 5,220.58/x
  3. Step 3: Cross multiply
    9,199.57x = 12,694.96 × 5,220.58
  4. Step 4: Simplify right side
    9,199.57x = 66,275,054.28
  5. Step 5: Solve for x
    x = 66,275,054.28/9,199.57
  6. Step 6: Final answer
    x = 7,204.15

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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.