Home / 12,267.40-18,382.20-9,132.70

Finding the Fourth Proportional to 12,267.40, 18,382.20 and 9,132.70

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Solution

The fourth proportional to 12,267.40, 18,382.20 and 9,132.70 is: 13,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267.40 : 18,382.20 = 9,132.70 : x
  2. Step 2: Convert to fraction form
    12,267.40/18,382.20 = 9,132.70/x
  3. Step 3: Cross multiply
    12,267.40x = 18,382.20 × 9,132.70
  4. Step 4: Simplify right side
    12,267.40x = 167,879,117.94
  5. Step 5: Solve for x
    x = 167,879,117.94/12,267.40
  6. Step 6: Final answer
    x = 13,684.98

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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.