Home / 13,156.30-19,734.66-4,391.26

Finding the Fourth Proportional to 13,156.30, 19,734.66 and 4,391.26

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Solution

The fourth proportional to 13,156.30, 19,734.66 and 4,391.26 is: 6,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,156.30 : 19,734.66 = 4,391.26 : x
  2. Step 2: Convert to fraction form
    13,156.30/19,734.66 = 4,391.26/x
  3. Step 3: Cross multiply
    13,156.30x = 19,734.66 × 4,391.26
  4. Step 4: Simplify right side
    13,156.30x = 86,660,023.07
  5. Step 5: Solve for x
    x = 86,660,023.07/13,156.30
  6. Step 6: Final answer
    x = 6,586.96

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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.