Home / 12,339.30-18,480.15-9,401.70

Finding the Fourth Proportional to 12,339.30, 18,480.15 and 9,401.70

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Solution

The fourth proportional to 12,339.30, 18,480.15 and 9,401.70 is: 14,080.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.30 : 18,480.15 = 9,401.70 : x
  2. Step 2: Convert to fraction form
    12,339.30/18,480.15 = 9,401.70/x
  3. Step 3: Cross multiply
    12,339.30x = 18,480.15 × 9,401.70
  4. Step 4: Simplify right side
    12,339.30x = 173,744,826.26
  5. Step 5: Solve for x
    x = 173,744,826.26/12,339.30
  6. Step 6: Final answer
    x = 14,080.61

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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.