Home / 11,631.28-17,447.66-3,840.16

Finding the Fourth Proportional to 11,631.28, 17,447.66 and 3,840.16

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Solution

The fourth proportional to 11,631.28, 17,447.66 and 3,840.16 is: 5,760.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,631.28 : 17,447.66 = 3,840.16 : x
  2. Step 2: Convert to fraction form
    11,631.28/17,447.66 = 3,840.16/x
  3. Step 3: Cross multiply
    11,631.28x = 17,447.66 × 3,840.16
  4. Step 4: Simplify right side
    11,631.28x = 67,001,806.03
  5. Step 5: Solve for x
    x = 67,001,806.03/11,631.28
  6. Step 6: Final answer
    x = 5,760.48

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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.