Home / 10,621.20-15,936.15-4,694.95

Finding the Fourth Proportional to 10,621.20, 15,936.15 and 4,694.95

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Solution

The fourth proportional to 10,621.20, 15,936.15 and 4,694.95 is: 7,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.20 : 15,936.15 = 4,694.95 : x
  2. Step 2: Convert to fraction form
    10,621.20/15,936.15 = 4,694.95/x
  3. Step 3: Cross multiply
    10,621.20x = 15,936.15 × 4,694.95
  4. Step 4: Simplify right side
    10,621.20x = 74,819,427.44
  5. Step 5: Solve for x
    x = 74,819,427.44/10,621.20
  6. Step 6: Final answer
    x = 7,044.35

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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.