Home / 10,928.81-16,378.70-4,351.38

Finding the Fourth Proportional to 10,928.81, 16,378.70 and 4,351.38

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Solution

The fourth proportional to 10,928.81, 16,378.70 and 4,351.38 is: 6,521.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.81 : 16,378.70 = 4,351.38 : x
  2. Step 2: Convert to fraction form
    10,928.81/16,378.70 = 4,351.38/x
  3. Step 3: Cross multiply
    10,928.81x = 16,378.70 × 4,351.38
  4. Step 4: Simplify right side
    10,928.81x = 71,269,925.85
  5. Step 5: Solve for x
    x = 71,269,925.85/10,928.81
  6. Step 6: Final answer
    x = 6,521.29

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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.