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Finding the Fourth Proportional to 12,693.92, 19,034.39 and 5,296.39

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Solution

The fourth proportional to 12,693.92, 19,034.39 and 5,296.39 is: 7,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693.92 : 19,034.39 = 5,296.39 : x
  2. Step 2: Convert to fraction form
    12,693.92/19,034.39 = 5,296.39/x
  3. Step 3: Cross multiply
    12,693.92x = 19,034.39 × 5,296.39
  4. Step 4: Simplify right side
    12,693.92x = 100,813,518.51
  5. Step 5: Solve for x
    x = 100,813,518.51/12,693.92
  6. Step 6: Final answer
    x = 7,941.88

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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.