Home / 12,040.64-18,062.91-3,718.71

Finding the Fourth Proportional to 12,040.64, 18,062.91 and 3,718.71

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Solution

The fourth proportional to 12,040.64, 18,062.91 and 3,718.71 is: 5,578.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.64 : 18,062.91 = 3,718.71 : x
  2. Step 2: Convert to fraction form
    12,040.64/18,062.91 = 3,718.71/x
  3. Step 3: Cross multiply
    12,040.64x = 18,062.91 × 3,718.71
  4. Step 4: Simplify right side
    12,040.64x = 67,170,724.05
  5. Step 5: Solve for x
    x = 67,170,724.05/12,040.64
  6. Step 6: Final answer
    x = 5,578.67

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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.