Home / 7,713.09-11,569.73-2,715.61

Finding the Fourth Proportional to 7,713.09, 11,569.73 and 2,715.61

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Solution

The fourth proportional to 7,713.09, 11,569.73 and 2,715.61 is: 4,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,713.09 : 11,569.73 = 2,715.61 : x
  2. Step 2: Convert to fraction form
    7,713.09/11,569.73 = 2,715.61/x
  3. Step 3: Cross multiply
    7,713.09x = 11,569.73 × 2,715.61
  4. Step 4: Simplify right side
    7,713.09x = 31,418,874.49
  5. Step 5: Solve for x
    x = 31,418,874.49/7,713.09
  6. Step 6: Final answer
    x = 4,073.45

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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.