Home / 11,316.02-16,975.17-3,918.78

Finding the Fourth Proportional to 11,316.02, 16,975.17 and 3,918.78

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Solution

The fourth proportional to 11,316.02, 16,975.17 and 3,918.78 is: 5,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.02 : 16,975.17 = 3,918.78 : x
  2. Step 2: Convert to fraction form
    11,316.02/16,975.17 = 3,918.78/x
  3. Step 3: Cross multiply
    11,316.02x = 16,975.17 × 3,918.78
  4. Step 4: Simplify right side
    11,316.02x = 66,521,956.69
  5. Step 5: Solve for x
    x = 66,521,956.69/11,316.02
  6. Step 6: Final answer
    x = 5,878.57

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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.