Home / 8,142.28-12,213.43-2,595.65

Finding the Fourth Proportional to 8,142.28, 12,213.43 and 2,595.65

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Solution

The fourth proportional to 8,142.28, 12,213.43 and 2,595.65 is: 3,893.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.28 : 12,213.43 = 2,595.65 : x
  2. Step 2: Convert to fraction form
    8,142.28/12,213.43 = 2,595.65/x
  3. Step 3: Cross multiply
    8,142.28x = 12,213.43 × 2,595.65
  4. Step 4: Simplify right side
    8,142.28x = 31,701,722.02
  5. Step 5: Solve for x
    x = 31,701,722.02/8,142.28
  6. Step 6: Final answer
    x = 3,893.47

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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.