Home / 8,780.45-13,169.23-4,100.95

Finding the Fourth Proportional to 8,780.45, 13,169.23 and 4,100.95

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Solution

The fourth proportional to 8,780.45, 13,169.23 and 4,100.95 is: 6,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,780.45 : 13,169.23 = 4,100.95 : x
  2. Step 2: Convert to fraction form
    8,780.45/13,169.23 = 4,100.95/x
  3. Step 3: Cross multiply
    8,780.45x = 13,169.23 × 4,100.95
  4. Step 4: Simplify right side
    8,780.45x = 54,006,353.77
  5. Step 5: Solve for x
    x = 54,006,353.77/8,780.45
  6. Step 6: Final answer
    x = 6,150.75

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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.