Home / 10,204.30-15,305.55-2,808.10

Finding the Fourth Proportional to 10,204.30, 15,305.55 and 2,808.10

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Solution

The fourth proportional to 10,204.30, 15,305.55 and 2,808.10 is: 4,211.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204.30 : 15,305.55 = 2,808.10 : x
  2. Step 2: Convert to fraction form
    10,204.30/15,305.55 = 2,808.10/x
  3. Step 3: Cross multiply
    10,204.30x = 15,305.55 × 2,808.10
  4. Step 4: Simplify right side
    10,204.30x = 42,979,514.96
  5. Step 5: Solve for x
    x = 42,979,514.96/10,204.30
  6. Step 6: Final answer
    x = 4,211.90

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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.