Home / 10,938.44-16,405.90-3,917.15

Finding the Fourth Proportional to 10,938.44, 16,405.90 and 3,917.15

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Solution

The fourth proportional to 10,938.44, 16,405.90 and 3,917.15 is: 5,875.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.44 : 16,405.90 = 3,917.15 : x
  2. Step 2: Convert to fraction form
    10,938.44/16,405.90 = 3,917.15/x
  3. Step 3: Cross multiply
    10,938.44x = 16,405.90 × 3,917.15
  4. Step 4: Simplify right side
    10,938.44x = 64,264,371.19
  5. Step 5: Solve for x
    x = 64,264,371.19/10,938.44
  6. Step 6: Final answer
    x = 5,875.09

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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.