Home / 8,434.55-12,642.09-4,530.75

Finding the Fourth Proportional to 8,434.55, 12,642.09 and 4,530.75

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Solution

The fourth proportional to 8,434.55, 12,642.09 and 4,530.75 is: 6,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.55 : 12,642.09 = 4,530.75 : x
  2. Step 2: Convert to fraction form
    8,434.55/12,642.09 = 4,530.75/x
  3. Step 3: Cross multiply
    8,434.55x = 12,642.09 × 4,530.75
  4. Step 4: Simplify right side
    8,434.55x = 57,278,149.27
  5. Step 5: Solve for x
    x = 57,278,149.27/8,434.55
  6. Step 6: Final answer
    x = 6,790.90

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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.