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Finding the Fourth Proportional to 13,065.60, 19,623.60 and 11,195.72

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Solution

The fourth proportional to 13,065.60, 19,623.60 and 11,195.72 is: 16,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.60 : 19,623.60 = 11,195.72 : x
  2. Step 2: Convert to fraction form
    13,065.60/19,623.60 = 11,195.72/x
  3. Step 3: Cross multiply
    13,065.60x = 19,623.60 × 11,195.72
  4. Step 4: Simplify right side
    13,065.60x = 219,700,232.87
  5. Step 5: Solve for x
    x = 219,700,232.87/13,065.60
  6. Step 6: Final answer
    x = 16,815.17

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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.