Home / 12,219.08-16,862.15-7,183.88

Finding the Fourth Proportional to 12,219.08, 16,862.15 and 7,183.88

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Solution

The fourth proportional to 12,219.08, 16,862.15 and 7,183.88 is: 9,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.08 : 16,862.15 = 7,183.88 : x
  2. Step 2: Convert to fraction form
    12,219.08/16,862.15 = 7,183.88/x
  3. Step 3: Cross multiply
    12,219.08x = 16,862.15 × 7,183.88
  4. Step 4: Simplify right side
    12,219.08x = 121,135,595.79
  5. Step 5: Solve for x
    x = 121,135,595.79/12,219.08
  6. Step 6: Final answer
    x = 9,913.64

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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.