Home / 8,589.12-12,888.53-3,658.24

Finding the Fourth Proportional to 8,589.12, 12,888.53 and 3,658.24

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Solution

The fourth proportional to 8,589.12, 12,888.53 and 3,658.24 is: 5,489.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.12 : 12,888.53 = 3,658.24 : x
  2. Step 2: Convert to fraction form
    8,589.12/12,888.53 = 3,658.24/x
  3. Step 3: Cross multiply
    8,589.12x = 12,888.53 × 3,658.24
  4. Step 4: Simplify right side
    8,589.12x = 47,149,335.99
  5. Step 5: Solve for x
    x = 47,149,335.99/8,589.12
  6. Step 6: Final answer
    x = 5,489.43

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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.