Home / 13,156.64-19,734.94-4,391.56

Finding the Fourth Proportional to 13,156.64, 19,734.94 and 4,391.56

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Solution

The fourth proportional to 13,156.64, 19,734.94 and 4,391.56 is: 6,587.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.64 : 19,734.94 = 4,391.56 : x
  2. Step 2: Convert to fraction form
    13,156.64/19,734.94 = 4,391.56/x
  3. Step 3: Cross multiply
    13,156.64x = 19,734.94 × 4,391.56
  4. Step 4: Simplify right side
    13,156.64x = 86,667,173.11
  5. Step 5: Solve for x
    x = 86,667,173.11/13,156.64
  6. Step 6: Final answer
    x = 6,587.33

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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.