Home / 10,628.85-15,943.29-5,080.89

Finding the Fourth Proportional to 10,628.85, 15,943.29 and 5,080.89

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Solution

The fourth proportional to 10,628.85, 15,943.29 and 5,080.89 is: 7,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.85 : 15,943.29 = 5,080.89 : x
  2. Step 2: Convert to fraction form
    10,628.85/15,943.29 = 5,080.89/x
  3. Step 3: Cross multiply
    10,628.85x = 15,943.29 × 5,080.89
  4. Step 4: Simplify right side
    10,628.85x = 81,006,102.73
  5. Step 5: Solve for x
    x = 81,006,102.73/10,628.85
  6. Step 6: Final answer
    x = 7,621.34

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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.