Home / 10,919.28-16,376.08-3,126.28

Finding the Fourth Proportional to 10,919.28, 16,376.08 and 3,126.28

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Solution

The fourth proportional to 10,919.28, 16,376.08 and 3,126.28 is: 4,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,919.28 : 16,376.08 = 3,126.28 : x
  2. Step 2: Convert to fraction form
    10,919.28/16,376.08 = 3,126.28/x
  3. Step 3: Cross multiply
    10,919.28x = 16,376.08 × 3,126.28
  4. Step 4: Simplify right side
    10,919.28x = 51,196,211.38
  5. Step 5: Solve for x
    x = 51,196,211.38/10,919.28
  6. Step 6: Final answer
    x = 4,688.61

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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.