Home / 8,069.80-12,098.98-3,135.28

Finding the Fourth Proportional to 8,069.80, 12,098.98 and 3,135.28

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Solution

The fourth proportional to 8,069.80, 12,098.98 and 3,135.28 is: 4,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.80 : 12,098.98 = 3,135.28 : x
  2. Step 2: Convert to fraction form
    8,069.80/12,098.98 = 3,135.28/x
  3. Step 3: Cross multiply
    8,069.80x = 12,098.98 × 3,135.28
  4. Step 4: Simplify right side
    8,069.80x = 37,933,690.01
  5. Step 5: Solve for x
    x = 37,933,690.01/8,069.80
  6. Step 6: Final answer
    x = 4,700.70

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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.