Home / 10,629.81-15,943.47-2,839.23

Finding the Fourth Proportional to 10,629.81, 15,943.47 and 2,839.23

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Solution

The fourth proportional to 10,629.81, 15,943.47 and 2,839.23 is: 4,258.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,629.81 : 15,943.47 = 2,839.23 : x
  2. Step 2: Convert to fraction form
    10,629.81/15,943.47 = 2,839.23/x
  3. Step 3: Cross multiply
    10,629.81x = 15,943.47 × 2,839.23
  4. Step 4: Simplify right side
    10,629.81x = 45,267,178.33
  5. Step 5: Solve for x
    x = 45,267,178.33/10,629.81
  6. Step 6: Final answer
    x = 4,258.51

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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.