Home / 8,511.85-12,767.81-2,588.80

Finding the Fourth Proportional to 8,511.85, 12,767.81 and 2,588.80

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Solution

The fourth proportional to 8,511.85, 12,767.81 and 2,588.80 is: 3,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.85 : 12,767.81 = 2,588.80 : x
  2. Step 2: Convert to fraction form
    8,511.85/12,767.81 = 2,588.80/x
  3. Step 3: Cross multiply
    8,511.85x = 12,767.81 × 2,588.80
  4. Step 4: Simplify right side
    8,511.85x = 33,053,306.53
  5. Step 5: Solve for x
    x = 33,053,306.53/8,511.85
  6. Step 6: Final answer
    x = 3,883.21

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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.