Home / 10,311.64-15,468.78-3,289.36

Finding the Fourth Proportional to 10,311.64, 15,468.78 and 3,289.36

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Solution

The fourth proportional to 10,311.64, 15,468.78 and 3,289.36 is: 4,934.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.64 : 15,468.78 = 3,289.36 : x
  2. Step 2: Convert to fraction form
    10,311.64/15,468.78 = 3,289.36/x
  3. Step 3: Cross multiply
    10,311.64x = 15,468.78 × 3,289.36
  4. Step 4: Simplify right side
    10,311.64x = 50,882,386.18
  5. Step 5: Solve for x
    x = 50,882,386.18/10,311.64
  6. Step 6: Final answer
    x = 4,934.46

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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.