Home / 8,849.21-12,209.69-5,617.85

Finding the Fourth Proportional to 8,849.21, 12,209.69 and 5,617.85

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Solution

The fourth proportional to 8,849.21, 12,209.69 and 5,617.85 is: 7,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.21 : 12,209.69 = 5,617.85 : x
  2. Step 2: Convert to fraction form
    8,849.21/12,209.69 = 5,617.85/x
  3. Step 3: Cross multiply
    8,849.21x = 12,209.69 × 5,617.85
  4. Step 4: Simplify right side
    8,849.21x = 68,592,159.96
  5. Step 5: Solve for x
    x = 68,592,159.96/8,849.21
  6. Step 6: Final answer
    x = 7,751.22

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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.