Home / 13,286.53-19,916.12-5,894.47

Finding the Fourth Proportional to 13,286.53, 19,916.12 and 5,894.47

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Solution

The fourth proportional to 13,286.53, 19,916.12 and 5,894.47 is: 8,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.53 : 19,916.12 = 5,894.47 : x
  2. Step 2: Convert to fraction form
    13,286.53/19,916.12 = 5,894.47/x
  3. Step 3: Cross multiply
    13,286.53x = 19,916.12 × 5,894.47
  4. Step 4: Simplify right side
    13,286.53x = 117,394,971.86
  5. Step 5: Solve for x
    x = 117,394,971.86/13,286.53
  6. Step 6: Final answer
    x = 8,835.64

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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.