Home / 10,195.65-15,292.49-2,801.21

Finding the Fourth Proportional to 10,195.65, 15,292.49 and 2,801.21

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Solution

The fourth proportional to 10,195.65, 15,292.49 and 2,801.21 is: 4,201.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.65 : 15,292.49 = 2,801.21 : x
  2. Step 2: Convert to fraction form
    10,195.65/15,292.49 = 2,801.21/x
  3. Step 3: Cross multiply
    10,195.65x = 15,292.49 × 2,801.21
  4. Step 4: Simplify right side
    10,195.65x = 42,837,385.44
  5. Step 5: Solve for x
    x = 42,837,385.44/10,195.65
  6. Step 6: Final answer
    x = 4,201.54

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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.