Home / 12,780.15-19,169.76-6,204.57

Finding the Fourth Proportional to 12,780.15, 19,169.76 and 6,204.57

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Solution

The fourth proportional to 12,780.15, 19,169.76 and 6,204.57 is: 9,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780.15 : 19,169.76 = 6,204.57 : x
  2. Step 2: Convert to fraction form
    12,780.15/19,169.76 = 6,204.57/x
  3. Step 3: Cross multiply
    12,780.15x = 19,169.76 × 6,204.57
  4. Step 4: Simplify right side
    12,780.15x = 118,940,117.80
  5. Step 5: Solve for x
    x = 118,940,117.80/12,780.15
  6. Step 6: Final answer
    x = 9,306.63

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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.