Home / 8,919.92-13,381.71-3,075.77

Finding the Fourth Proportional to 8,919.92, 13,381.71 and 3,075.77

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Solution

The fourth proportional to 8,919.92, 13,381.71 and 3,075.77 is: 4,614.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.92 : 13,381.71 = 3,075.77 : x
  2. Step 2: Convert to fraction form
    8,919.92/13,381.71 = 3,075.77/x
  3. Step 3: Cross multiply
    8,919.92x = 13,381.71 × 3,075.77
  4. Step 4: Simplify right side
    8,919.92x = 41,159,084.09
  5. Step 5: Solve for x
    x = 41,159,084.09/8,919.92
  6. Step 6: Final answer
    x = 4,614.29

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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.