Home / 7,708.47-11,562.30-2,162.20

Finding the Fourth Proportional to 7,708.47, 11,562.30 and 2,162.20

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Solution

The fourth proportional to 7,708.47, 11,562.30 and 2,162.20 is: 3,243.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.47 : 11,562.30 = 2,162.20 : x
  2. Step 2: Convert to fraction form
    7,708.47/11,562.30 = 2,162.20/x
  3. Step 3: Cross multiply
    7,708.47x = 11,562.30 × 2,162.20
  4. Step 4: Simplify right side
    7,708.47x = 25,000,005.06
  5. Step 5: Solve for x
    x = 25,000,005.06/7,708.47
  6. Step 6: Final answer
    x = 3,243.19

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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.