Home / 12,219.92-16,863.48-6,630.92

Finding the Fourth Proportional to 12,219.92, 16,863.48 and 6,630.92

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Solution

The fourth proportional to 12,219.92, 16,863.48 and 6,630.92 is: 9,150.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.92 : 16,863.48 = 6,630.92 : x
  2. Step 2: Convert to fraction form
    12,219.92/16,863.48 = 6,630.92/x
  3. Step 3: Cross multiply
    12,219.92x = 16,863.48 × 6,630.92
  4. Step 4: Simplify right side
    12,219.92x = 111,820,386.80
  5. Step 5: Solve for x
    x = 111,820,386.80/12,219.92
  6. Step 6: Final answer
    x = 9,150.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.