Home / 13,916.08-20,874.14-3,386.11

Finding the Fourth Proportional to 13,916.08, 20,874.14 and 3,386.11

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Solution

The fourth proportional to 13,916.08, 20,874.14 and 3,386.11 is: 5,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.08 : 20,874.14 = 3,386.11 : x
  2. Step 2: Convert to fraction form
    13,916.08/20,874.14 = 3,386.11/x
  3. Step 3: Cross multiply
    13,916.08x = 20,874.14 × 3,386.11
  4. Step 4: Simplify right side
    13,916.08x = 70,682,034.06
  5. Step 5: Solve for x
    x = 70,682,034.06/13,916.08
  6. Step 6: Final answer
    x = 5,079.16

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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.