Home / 10,639.67-15,959.49-4,789.44

Finding the Fourth Proportional to 10,639.67, 15,959.49 and 4,789.44

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Solution

The fourth proportional to 10,639.67, 15,959.49 and 4,789.44 is: 7,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.67 : 15,959.49 = 4,789.44 : x
  2. Step 2: Convert to fraction form
    10,639.67/15,959.49 = 4,789.44/x
  3. Step 3: Cross multiply
    10,639.67x = 15,959.49 × 4,789.44
  4. Step 4: Simplify right side
    10,639.67x = 76,437,019.79
  5. Step 5: Solve for x
    x = 76,437,019.79/10,639.67
  6. Step 6: Final answer
    x = 7,184.16

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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.