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Finding the Fourth Proportional to 13,165.65, 19,748.48 and 8,244.90

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Solution

The fourth proportional to 13,165.65, 19,748.48 and 8,244.90 is: 12,367.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.65 : 19,748.48 = 8,244.90 : x
  2. Step 2: Convert to fraction form
    13,165.65/19,748.48 = 8,244.90/x
  3. Step 3: Cross multiply
    13,165.65x = 19,748.48 × 8,244.90
  4. Step 4: Simplify right side
    13,165.65x = 162,824,201.53
  5. Step 5: Solve for x
    x = 162,824,201.53/13,165.65
  6. Step 6: Final answer
    x = 12,367.35

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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.