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Finding the Fourth Proportional to 18,998, 26,216.76 and 10,614.56

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Solution

The fourth proportional to 18,998, 26,216.76 and 10,614.56 is: 14,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998 : 26,216.76 = 10,614.56 : x
  2. Step 2: Convert to fraction form
    18,998/26,216.76 = 10,614.56/x
  3. Step 3: Cross multiply
    18,998x = 26,216.76 × 10,614.56
  4. Step 4: Simplify right side
    18,998x = 278,279,372.03
  5. Step 5: Solve for x
    x = 278,279,372.03/18,998
  6. Step 6: Final answer
    x = 14,647.82

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Double scale
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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.