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Finding the Fourth Proportional to 9,412.13, 14,121.28 and 3,868.09

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Solution

The fourth proportional to 9,412.13, 14,121.28 and 3,868.09 is: 5,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.13 : 14,121.28 = 3,868.09 : x
  2. Step 2: Convert to fraction form
    9,412.13/14,121.28 = 3,868.09/x
  3. Step 3: Cross multiply
    9,412.13x = 14,121.28 × 3,868.09
  4. Step 4: Simplify right side
    9,412.13x = 54,622,381.96
  5. Step 5: Solve for x
    x = 54,622,381.96/9,412.13
  6. Step 6: Final answer
    x = 5,803.40

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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.