Home / 7,940.56-11,010.33-7,677.13

Finding the Fourth Proportional to 7,940.56, 11,010.33 and 7,677.13

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Solution

The fourth proportional to 7,940.56, 11,010.33 and 7,677.13 is: 10,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.56 : 11,010.33 = 7,677.13 : x
  2. Step 2: Convert to fraction form
    7,940.56/11,010.33 = 7,677.13/x
  3. Step 3: Cross multiply
    7,940.56x = 11,010.33 × 7,677.13
  4. Step 4: Simplify right side
    7,940.56x = 84,527,727.87
  5. Step 5: Solve for x
    x = 84,527,727.87/7,940.56
  6. Step 6: Final answer
    x = 10,645.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.