Home / 9,199.47-12,694.92-5,220.35

Finding the Fourth Proportional to 9,199.47, 12,694.92 and 5,220.35

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Solution

The fourth proportional to 9,199.47, 12,694.92 and 5,220.35 is: 7,203.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,199.47 : 12,694.92 = 5,220.35 : x
  2. Step 2: Convert to fraction form
    9,199.47/12,694.92 = 5,220.35/x
  3. Step 3: Cross multiply
    9,199.47x = 12,694.92 × 5,220.35
  4. Step 4: Simplify right side
    9,199.47x = 66,271,836.05
  5. Step 5: Solve for x
    x = 66,271,836.05/9,199.47
  6. Step 6: Final answer
    x = 7,203.88

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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.