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Finding the Fourth Proportional to 13,244, 18,276.06 and 7,937.78

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Solution

The fourth proportional to 13,244, 18,276.06 and 7,937.78 is: 10,953.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244 : 18,276.06 = 7,937.78 : x
  2. Step 2: Convert to fraction form
    13,244/18,276.06 = 7,937.78/x
  3. Step 3: Cross multiply
    13,244x = 18,276.06 × 7,937.78
  4. Step 4: Simplify right side
    13,244x = 145,071,343.55
  5. Step 5: Solve for x
    x = 145,071,343.55/13,244
  6. Step 6: Final answer
    x = 10,953.74

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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.