Home / 8,960.89-13,441.38-2,720.91

Finding the Fourth Proportional to 8,960.89, 13,441.38 and 2,720.91

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Solution

The fourth proportional to 8,960.89, 13,441.38 and 2,720.91 is: 4,081.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.89 : 13,441.38 = 2,720.91 : x
  2. Step 2: Convert to fraction form
    8,960.89/13,441.38 = 2,720.91/x
  3. Step 3: Cross multiply
    8,960.89x = 13,441.38 × 2,720.91
  4. Step 4: Simplify right side
    8,960.89x = 36,572,785.26
  5. Step 5: Solve for x
    x = 36,572,785.26/8,960.89
  6. Step 6: Final answer
    x = 4,081.38

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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.