Home / 15,091.46-20,826.97-8,377.70

Finding the Fourth Proportional to 15,091.46, 20,826.97 and 8,377.70

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Solution

The fourth proportional to 15,091.46, 20,826.97 and 8,377.70 is: 11,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.46 : 20,826.97 = 8,377.70 : x
  2. Step 2: Convert to fraction form
    15,091.46/20,826.97 = 8,377.70/x
  3. Step 3: Cross multiply
    15,091.46x = 20,826.97 × 8,377.70
  4. Step 4: Simplify right side
    15,091.46x = 174,482,106.57
  5. Step 5: Solve for x
    x = 174,482,106.57/15,091.46
  6. Step 6: Final answer
    x = 11,561.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.