Home / 8,145.15-12,217.71-2,877.29

Finding the Fourth Proportional to 8,145.15, 12,217.71 and 2,877.29

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Solution

The fourth proportional to 8,145.15, 12,217.71 and 2,877.29 is: 4,315.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.15 : 12,217.71 = 2,877.29 : x
  2. Step 2: Convert to fraction form
    8,145.15/12,217.71 = 2,877.29/x
  3. Step 3: Cross multiply
    8,145.15x = 12,217.71 × 2,877.29
  4. Step 4: Simplify right side
    8,145.15x = 35,153,890.32
  5. Step 5: Solve for x
    x = 35,153,890.32/8,145.15
  6. Step 6: Final answer
    x = 4,315.93

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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.