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Finding the Fourth Proportional to 13,883.08, 20,838.66 and 8,051.08

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Solution

The fourth proportional to 13,883.08, 20,838.66 and 8,051.08 is: 12,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,883.08 : 20,838.66 = 8,051.08 : x
  2. Step 2: Convert to fraction form
    13,883.08/20,838.66 = 8,051.08/x
  3. Step 3: Cross multiply
    13,883.08x = 20,838.66 × 8,051.08
  4. Step 4: Simplify right side
    13,883.08x = 167,773,718.75
  5. Step 5: Solve for x
    x = 167,773,718.75/13,883.08
  6. Step 6: Final answer
    x = 12,084.76

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1.5x scale

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.