Home / 8,764.22-13,148.18-2,921.28

Finding the Fourth Proportional to 8,764.22, 13,148.18 and 2,921.28

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Solution

The fourth proportional to 8,764.22, 13,148.18 and 2,921.28 is: 4,382.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.22 : 13,148.18 = 2,921.28 : x
  2. Step 2: Convert to fraction form
    8,764.22/13,148.18 = 2,921.28/x
  3. Step 3: Cross multiply
    8,764.22x = 13,148.18 × 2,921.28
  4. Step 4: Simplify right side
    8,764.22x = 38,409,515.27
  5. Step 5: Solve for x
    x = 38,409,515.27/8,764.22
  6. Step 6: Final answer
    x = 4,382.54

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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.