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Finding the Fourth Proportional to 12,937.44, 19,389.36 and 5,816.44

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Solution

The fourth proportional to 12,937.44, 19,389.36 and 5,816.44 is: 8,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.44 : 19,389.36 = 5,816.44 : x
  2. Step 2: Convert to fraction form
    12,937.44/19,389.36 = 5,816.44/x
  3. Step 3: Cross multiply
    12,937.44x = 19,389.36 × 5,816.44
  4. Step 4: Simplify right side
    12,937.44x = 112,777,049.08
  5. Step 5: Solve for x
    x = 112,777,049.08/12,937.44
  6. Step 6: Final answer
    x = 8,717.11

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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.