Home / 7,980.12-11,013.03-4,443.42

Finding the Fourth Proportional to 7,980.12, 11,013.03 and 4,443.42

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Solution

The fourth proportional to 7,980.12, 11,013.03 and 4,443.42 is: 6,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.12 : 11,013.03 = 4,443.42 : x
  2. Step 2: Convert to fraction form
    7,980.12/11,013.03 = 4,443.42/x
  3. Step 3: Cross multiply
    7,980.12x = 11,013.03 × 4,443.42
  4. Step 4: Simplify right side
    7,980.12x = 48,935,517.76
  5. Step 5: Solve for x
    x = 48,935,517.76/7,980.12
  6. Step 6: Final answer
    x = 6,132.18

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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.