Home / 10,203.45-15,303.96-2,808.66

Finding the Fourth Proportional to 10,203.45, 15,303.96 and 2,808.66

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Solution

The fourth proportional to 10,203.45, 15,303.96 and 2,808.66 is: 4,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.45 : 15,303.96 = 2,808.66 : x
  2. Step 2: Convert to fraction form
    10,203.45/15,303.96 = 2,808.66/x
  3. Step 3: Cross multiply
    10,203.45x = 15,303.96 × 2,808.66
  4. Step 4: Simplify right side
    10,203.45x = 42,983,620.29
  5. Step 5: Solve for x
    x = 42,983,620.29/10,203.45
  6. Step 6: Final answer
    x = 4,212.66

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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.