Home / 9,091.42-13,631.09-3,545.28

Finding the Fourth Proportional to 9,091.42, 13,631.09 and 3,545.28

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Solution

The fourth proportional to 9,091.42, 13,631.09 and 3,545.28 is: 5,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.42 : 13,631.09 = 3,545.28 : x
  2. Step 2: Convert to fraction form
    9,091.42/13,631.09 = 3,545.28/x
  3. Step 3: Cross multiply
    9,091.42x = 13,631.09 × 3,545.28
  4. Step 4: Simplify right side
    9,091.42x = 48,326,013.03
  5. Step 5: Solve for x
    x = 48,326,013.03/9,091.42
  6. Step 6: Final answer
    x = 5,315.56

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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.