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Finding the Fourth Proportional to 19,503.64, 29,230.56 and 11,188.18

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Solution

The fourth proportional to 19,503.64, 29,230.56 and 11,188.18 is: 16,767.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,503.64 : 29,230.56 = 11,188.18 : x
  2. Step 2: Convert to fraction form
    19,503.64/29,230.56 = 11,188.18/x
  3. Step 3: Cross multiply
    19,503.64x = 29,230.56 × 11,188.18
  4. Step 4: Simplify right side
    19,503.64x = 327,036,766.78
  5. Step 5: Solve for x
    x = 327,036,766.78/19,503.64
  6. Step 6: Final answer
    x = 16,767.99

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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.