Home / 9,170.11-13,773.57-8,911.72

Finding the Fourth Proportional to 9,170.11, 13,773.57 and 8,911.72

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Solution

The fourth proportional to 9,170.11, 13,773.57 and 8,911.72 is: 13,385.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.11 : 13,773.57 = 8,911.72 : x
  2. Step 2: Convert to fraction form
    9,170.11/13,773.57 = 8,911.72/x
  3. Step 3: Cross multiply
    9,170.11x = 13,773.57 × 8,911.72
  4. Step 4: Simplify right side
    9,170.11x = 122,746,199.24
  5. Step 5: Solve for x
    x = 122,746,199.24/9,170.11
  6. Step 6: Final answer
    x = 13,385.47

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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.