Home / 8,118.93-12,179.43-2,570.29

Finding the Fourth Proportional to 8,118.93, 12,179.43 and 2,570.29

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Solution

The fourth proportional to 8,118.93, 12,179.43 and 2,570.29 is: 3,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.93 : 12,179.43 = 2,570.29 : x
  2. Step 2: Convert to fraction form
    8,118.93/12,179.43 = 2,570.29/x
  3. Step 3: Cross multiply
    8,118.93x = 12,179.43 × 2,570.29
  4. Step 4: Simplify right side
    8,118.93x = 31,304,711.48
  5. Step 5: Solve for x
    x = 31,304,711.48/8,118.93
  6. Step 6: Final answer
    x = 3,855.77

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1.5x scale

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.