Home / 12,616.85-18,923.12-4,182.32

Finding the Fourth Proportional to 12,616.85, 18,923.12 and 4,182.32

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Solution

The fourth proportional to 12,616.85, 18,923.12 and 4,182.32 is: 6,272.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,616.85 : 18,923.12 = 4,182.32 : x
  2. Step 2: Convert to fraction form
    12,616.85/18,923.12 = 4,182.32/x
  3. Step 3: Cross multiply
    12,616.85x = 18,923.12 × 4,182.32
  4. Step 4: Simplify right side
    12,616.85x = 79,142,522.33
  5. Step 5: Solve for x
    x = 79,142,522.33/12,616.85
  6. Step 6: Final answer
    x = 6,272.76

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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.