Home / 10,918.30-16,376.19-3,021.39

Finding the Fourth Proportional to 10,918.30, 16,376.19 and 3,021.39

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Solution

The fourth proportional to 10,918.30, 16,376.19 and 3,021.39 is: 4,531.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.30 : 16,376.19 = 3,021.39 : x
  2. Step 2: Convert to fraction form
    10,918.30/16,376.19 = 3,021.39/x
  3. Step 3: Cross multiply
    10,918.30x = 16,376.19 × 3,021.39
  4. Step 4: Simplify right side
    10,918.30x = 49,478,856.70
  5. Step 5: Solve for x
    x = 49,478,856.70/10,918.30
  6. Step 6: Final answer
    x = 4,531.74

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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.