Home / 7,945.81-11,911.25-2,677.13

Finding the Fourth Proportional to 7,945.81, 11,911.25 and 2,677.13

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Solution

The fourth proportional to 7,945.81, 11,911.25 and 2,677.13 is: 4,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.81 : 11,911.25 = 2,677.13 : x
  2. Step 2: Convert to fraction form
    7,945.81/11,911.25 = 2,677.13/x
  3. Step 3: Cross multiply
    7,945.81x = 11,911.25 × 2,677.13
  4. Step 4: Simplify right side
    7,945.81x = 31,887,964.71
  5. Step 5: Solve for x
    x = 31,887,964.71/7,945.81
  6. Step 6: Final answer
    x = 4,013.18

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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.