Home / 9,151.72-13,727.44-2,912.11

Finding the Fourth Proportional to 9,151.72, 13,727.44 and 2,912.11

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Solution

The fourth proportional to 9,151.72, 13,727.44 and 2,912.11 is: 4,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.72 : 13,727.44 = 2,912.11 : x
  2. Step 2: Convert to fraction form
    9,151.72/13,727.44 = 2,912.11/x
  3. Step 3: Cross multiply
    9,151.72x = 13,727.44 × 2,912.11
  4. Step 4: Simplify right side
    9,151.72x = 39,975,815.30
  5. Step 5: Solve for x
    x = 39,975,815.30/9,151.72
  6. Step 6: Final answer
    x = 4,368.12

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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.