Home / 13,856.08-19,121.70-8,266

Finding the Fourth Proportional to 13,856.08, 19,121.70 and 8,266

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Solution

The fourth proportional to 13,856.08, 19,121.70 and 8,266 is: 11,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.08 : 19,121.70 = 8,266 : x
  2. Step 2: Convert to fraction form
    13,856.08/19,121.70 = 8,266/x
  3. Step 3: Cross multiply
    13,856.08x = 19,121.70 × 8,266
  4. Step 4: Simplify right side
    13,856.08x = 158,059,972.20
  5. Step 5: Solve for x
    x = 158,059,972.20/13,856.08
  6. Step 6: Final answer
    x = 11,407.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.