Home / 9,208.12-12,708.12-5,622.88

Finding the Fourth Proportional to 9,208.12, 12,708.12 and 5,622.88

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Solution

The fourth proportional to 9,208.12, 12,708.12 and 5,622.88 is: 7,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,208.12 : 12,708.12 = 5,622.88 : x
  2. Step 2: Convert to fraction form
    9,208.12/12,708.12 = 5,622.88/x
  3. Step 3: Cross multiply
    9,208.12x = 12,708.12 × 5,622.88
  4. Step 4: Simplify right side
    9,208.12x = 71,456,233.79
  5. Step 5: Solve for x
    x = 71,456,233.79/9,208.12
  6. Step 6: Final answer
    x = 7,760.13

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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.