Home / 13,156.14-19,734.38-4,391.06

Finding the Fourth Proportional to 13,156.14, 19,734.38 and 4,391.06

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Solution

The fourth proportional to 13,156.14, 19,734.38 and 4,391.06 is: 6,586.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.14 : 19,734.38 = 4,391.06 : x
  2. Step 2: Convert to fraction form
    13,156.14/19,734.38 = 4,391.06/x
  3. Step 3: Cross multiply
    13,156.14x = 19,734.38 × 4,391.06
  4. Step 4: Simplify right side
    13,156.14x = 86,654,726.02
  5. Step 5: Solve for x
    x = 86,654,726.02/13,156.14
  6. Step 6: Final answer
    x = 6,586.64

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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.