Home / 10,419.95-15,629.38-2,628.83

Finding the Fourth Proportional to 10,419.95, 15,629.38 and 2,628.83

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Solution

The fourth proportional to 10,419.95, 15,629.38 and 2,628.83 is: 3,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.95 : 15,629.38 = 2,628.83 : x
  2. Step 2: Convert to fraction form
    10,419.95/15,629.38 = 2,628.83/x
  3. Step 3: Cross multiply
    10,419.95x = 15,629.38 × 2,628.83
  4. Step 4: Simplify right side
    10,419.95x = 41,086,983.03
  5. Step 5: Solve for x
    x = 41,086,983.03/10,419.95
  6. Step 6: Final answer
    x = 3,943.11

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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.