Home / 7,990.23-12,002.63-6,760.11

Finding the Fourth Proportional to 7,990.23, 12,002.63 and 6,760.11

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Solution

The fourth proportional to 7,990.23, 12,002.63 and 6,760.11 is: 10,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.23 : 12,002.63 = 6,760.11 : x
  2. Step 2: Convert to fraction form
    7,990.23/12,002.63 = 6,760.11/x
  3. Step 3: Cross multiply
    7,990.23x = 12,002.63 × 6,760.11
  4. Step 4: Simplify right side
    7,990.23x = 81,139,065.29
  5. Step 5: Solve for x
    x = 81,139,065.29/7,990.23
  6. Step 6: Final answer
    x = 10,154.78

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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.