Home / 7,722.18-11,588.67-5,387.76

Finding the Fourth Proportional to 7,722.18, 11,588.67 and 5,387.76

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Solution

The fourth proportional to 7,722.18, 11,588.67 and 5,387.76 is: 8,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.18 : 11,588.67 = 5,387.76 : x
  2. Step 2: Convert to fraction form
    7,722.18/11,588.67 = 5,387.76/x
  3. Step 3: Cross multiply
    7,722.18x = 11,588.67 × 5,387.76
  4. Step 4: Simplify right side
    7,722.18x = 62,436,972.68
  5. Step 5: Solve for x
    x = 62,436,972.68/7,722.18
  6. Step 6: Final answer
    x = 8,085.41

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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.