Home / 12,474.18-18,711.09-3,589.72

Finding the Fourth Proportional to 12,474.18, 18,711.09 and 3,589.72

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Solution

The fourth proportional to 12,474.18, 18,711.09 and 3,589.72 is: 5,384.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.18 : 18,711.09 = 3,589.72 : x
  2. Step 2: Convert to fraction form
    12,474.18/18,711.09 = 3,589.72/x
  3. Step 3: Cross multiply
    12,474.18x = 18,711.09 × 3,589.72
  4. Step 4: Simplify right side
    12,474.18x = 67,167,527.22
  5. Step 5: Solve for x
    x = 67,167,527.22/12,474.18
  6. Step 6: Final answer
    x = 5,384.52

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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.