Home / 18,997.48-26,199-11,818.18

Finding the Fourth Proportional to 18,997.48, 26,199 and 11,818.18

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Solution

The fourth proportional to 18,997.48, 26,199 and 11,818.18 is: 16,298.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.48 : 26,199 = 11,818.18 : x
  2. Step 2: Convert to fraction form
    18,997.48/26,199 = 11,818.18/x
  3. Step 3: Cross multiply
    18,997.48x = 26,199 × 11,818.18
  4. Step 4: Simplify right side
    18,997.48x = 309,624,497.82
  5. Step 5: Solve for x
    x = 309,624,497.82/18,997.48
  6. Step 6: Final answer
    x = 16,298.19

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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.