Home / 10,226.54-15,338.28-3,989.36

Finding the Fourth Proportional to 10,226.54, 15,338.28 and 3,989.36

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Solution

The fourth proportional to 10,226.54, 15,338.28 and 3,989.36 is: 5,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,226.54 : 15,338.28 = 3,989.36 : x
  2. Step 2: Convert to fraction form
    10,226.54/15,338.28 = 3,989.36/x
  3. Step 3: Cross multiply
    10,226.54x = 15,338.28 × 3,989.36
  4. Step 4: Simplify right side
    10,226.54x = 61,189,920.70
  5. Step 5: Solve for x
    x = 61,189,920.70/10,226.54
  6. Step 6: Final answer
    x = 5,983.44

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1.5x scale

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.