Home / 10,203.35-15,305.04-2,808.95

Finding the Fourth Proportional to 10,203.35, 15,305.04 and 2,808.95

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Solution

The fourth proportional to 10,203.35, 15,305.04 and 2,808.95 is: 4,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.35 : 15,305.04 = 2,808.95 : x
  2. Step 2: Convert to fraction form
    10,203.35/15,305.04 = 2,808.95/x
  3. Step 3: Cross multiply
    10,203.35x = 15,305.04 × 2,808.95
  4. Step 4: Simplify right side
    10,203.35x = 42,991,015.58
  5. Step 5: Solve for x
    x = 42,991,015.58/10,203.35
  6. Step 6: Final answer
    x = 4,213.42

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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.