Home / 12,219.96-16,863.54-6,630.96

Finding the Fourth Proportional to 12,219.96, 16,863.54 and 6,630.96

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Solution

The fourth proportional to 12,219.96, 16,863.54 and 6,630.96 is: 9,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.96 : 16,863.54 = 6,630.96 : x
  2. Step 2: Convert to fraction form
    12,219.96/16,863.54 = 6,630.96/x
  3. Step 3: Cross multiply
    12,219.96x = 16,863.54 × 6,630.96
  4. Step 4: Simplify right side
    12,219.96x = 111,821,459.20
  5. Step 5: Solve for x
    x = 111,821,459.20/12,219.96
  6. Step 6: Final answer
    x = 9,150.72

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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.