Home / 12,411.72-18,616.66-3,647.32

Finding the Fourth Proportional to 12,411.72, 18,616.66 and 3,647.32

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Solution

The fourth proportional to 12,411.72, 18,616.66 and 3,647.32 is: 5,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.72 : 18,616.66 = 3,647.32 : x
  2. Step 2: Convert to fraction form
    12,411.72/18,616.66 = 3,647.32/x
  3. Step 3: Cross multiply
    12,411.72x = 18,616.66 × 3,647.32
  4. Step 4: Simplify right side
    12,411.72x = 67,900,860.69
  5. Step 5: Solve for x
    x = 67,900,860.69/12,411.72
  6. Step 6: Final answer
    x = 5,470.71

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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.