Home / 12,391.58-18,589.50-6,151.95

Finding the Fourth Proportional to 12,391.58, 18,589.50 and 6,151.95

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Solution

The fourth proportional to 12,391.58, 18,589.50 and 6,151.95 is: 9,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,391.58 : 18,589.50 = 6,151.95 : x
  2. Step 2: Convert to fraction form
    12,391.58/18,589.50 = 6,151.95/x
  3. Step 3: Cross multiply
    12,391.58x = 18,589.50 × 6,151.95
  4. Step 4: Simplify right side
    12,391.58x = 114,361,674.53
  5. Step 5: Solve for x
    x = 114,361,674.53/12,391.58
  6. Step 6: Final answer
    x = 9,228.98

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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.