Home / 8,764.57-13,146.93-2,921.19

Finding the Fourth Proportional to 8,764.57, 13,146.93 and 2,921.19

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Solution

The fourth proportional to 8,764.57, 13,146.93 and 2,921.19 is: 4,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764.57 : 13,146.93 = 2,921.19 : x
  2. Step 2: Convert to fraction form
    8,764.57/13,146.93 = 2,921.19/x
  3. Step 3: Cross multiply
    8,764.57x = 13,146.93 × 2,921.19
  4. Step 4: Simplify right side
    8,764.57x = 38,404,600.11
  5. Step 5: Solve for x
    x = 38,404,600.11/8,764.57
  6. Step 6: Final answer
    x = 4,381.80

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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.