Home / 10,209.95-15,310.96-3,969.13

Finding the Fourth Proportional to 10,209.95, 15,310.96 and 3,969.13

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Solution

The fourth proportional to 10,209.95, 15,310.96 and 3,969.13 is: 5,952.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.95 : 15,310.96 = 3,969.13 : x
  2. Step 2: Convert to fraction form
    10,209.95/15,310.96 = 3,969.13/x
  3. Step 3: Cross multiply
    10,209.95x = 15,310.96 × 3,969.13
  4. Step 4: Simplify right side
    10,209.95x = 60,771,190.66
  5. Step 5: Solve for x
    x = 60,771,190.66/10,209.95
  6. Step 6: Final answer
    x = 5,952.15

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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.