Home / 8,719.28-13,075.45-3,169.61

Finding the Fourth Proportional to 8,719.28, 13,075.45 and 3,169.61

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Solution

The fourth proportional to 8,719.28, 13,075.45 and 3,169.61 is: 4,753.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.28 : 13,075.45 = 3,169.61 : x
  2. Step 2: Convert to fraction form
    8,719.28/13,075.45 = 3,169.61/x
  3. Step 3: Cross multiply
    8,719.28x = 13,075.45 × 3,169.61
  4. Step 4: Simplify right side
    8,719.28x = 41,444,077.07
  5. Step 5: Solve for x
    x = 41,444,077.07/8,719.28
  6. Step 6: Final answer
    x = 4,753.15

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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.