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Finding the Fourth Proportional to 13,079.34, 18,050.34 and 7,976.73

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Solution

The fourth proportional to 13,079.34, 18,050.34 and 7,976.73 is: 11,008.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.34 : 18,050.34 = 7,976.73 : x
  2. Step 2: Convert to fraction form
    13,079.34/18,050.34 = 7,976.73/x
  3. Step 3: Cross multiply
    13,079.34x = 18,050.34 × 7,976.73
  4. Step 4: Simplify right side
    13,079.34x = 143,982,688.59
  5. Step 5: Solve for x
    x = 143,982,688.59/13,079.34
  6. Step 6: Final answer
    x = 11,008.41

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1.5x scale

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.