Home / 7,381.89-11,061.07-5,164.92

Finding the Fourth Proportional to 7,381.89, 11,061.07 and 5,164.92

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Solution

The fourth proportional to 7,381.89, 11,061.07 and 5,164.92 is: 7,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.89 : 11,061.07 = 5,164.92 : x
  2. Step 2: Convert to fraction form
    7,381.89/11,061.07 = 5,164.92/x
  3. Step 3: Cross multiply
    7,381.89x = 11,061.07 × 5,164.92
  4. Step 4: Simplify right side
    7,381.89x = 57,129,541.66
  5. Step 5: Solve for x
    x = 57,129,541.66/7,381.89
  6. Step 6: Final answer
    x = 7,739.15

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1.5x scale

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.