Home / 7,538.16-11,309.88-3,381.12

Finding the Fourth Proportional to 7,538.16, 11,309.88 and 3,381.12

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Solution

The fourth proportional to 7,538.16, 11,309.88 and 3,381.12 is: 5,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.16 : 11,309.88 = 3,381.12 : x
  2. Step 2: Convert to fraction form
    7,538.16/11,309.88 = 3,381.12/x
  3. Step 3: Cross multiply
    7,538.16x = 11,309.88 × 3,381.12
  4. Step 4: Simplify right side
    7,538.16x = 38,240,061.47
  5. Step 5: Solve for x
    x = 38,240,061.47/7,538.16
  6. Step 6: Final answer
    x = 5,072.86

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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.