Home / 8,589.24-12,888.72-3,658.37

Finding the Fourth Proportional to 8,589.24, 12,888.72 and 3,658.37

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Solution

The fourth proportional to 8,589.24, 12,888.72 and 3,658.37 is: 5,489.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.24 : 12,888.72 = 3,658.37 : x
  2. Step 2: Convert to fraction form
    8,589.24/12,888.72 = 3,658.37/x
  3. Step 3: Cross multiply
    8,589.24x = 12,888.72 × 3,658.37
  4. Step 4: Simplify right side
    8,589.24x = 47,151,642.14
  5. Step 5: Solve for x
    x = 47,151,642.14/8,589.24
  6. Step 6: Final answer
    x = 5,489.62

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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.