Home / 10,205.43-15,308.10-2,809.95

Finding the Fourth Proportional to 10,205.43, 15,308.10 and 2,809.95

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Solution

The fourth proportional to 10,205.43, 15,308.10 and 2,809.95 is: 4,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.43 : 15,308.10 = 2,809.95 : x
  2. Step 2: Convert to fraction form
    10,205.43/15,308.10 = 2,809.95/x
  3. Step 3: Cross multiply
    10,205.43x = 15,308.10 × 2,809.95
  4. Step 4: Simplify right side
    10,205.43x = 43,014,995.60
  5. Step 5: Solve for x
    x = 43,014,995.60/10,205.43
  6. Step 6: Final answer
    x = 4,214.91

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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.