Home / 8,077.13-12,111.74-3,332.40

Finding the Fourth Proportional to 8,077.13, 12,111.74 and 3,332.40

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Solution

The fourth proportional to 8,077.13, 12,111.74 and 3,332.40 is: 4,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.13 : 12,111.74 = 3,332.40 : x
  2. Step 2: Convert to fraction form
    8,077.13/12,111.74 = 3,332.40/x
  3. Step 3: Cross multiply
    8,077.13x = 12,111.74 × 3,332.40
  4. Step 4: Simplify right side
    8,077.13x = 40,361,162.38
  5. Step 5: Solve for x
    x = 40,361,162.38/8,077.13
  6. Step 6: Final answer
    x = 4,996.97

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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.