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Finding the Fourth Proportional to 18,994, 26,211.72 and 10,612.24

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Solution

The fourth proportional to 18,994, 26,211.72 and 10,612.24 is: 14,644.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994 : 26,211.72 = 10,612.24 : x
  2. Step 2: Convert to fraction form
    18,994/26,211.72 = 10,612.24/x
  3. Step 3: Cross multiply
    18,994x = 26,211.72 × 10,612.24
  4. Step 4: Simplify right side
    18,994x = 278,165,063.45
  5. Step 5: Solve for x
    x = 278,165,063.45/18,994
  6. Step 6: Final answer
    x = 14,644.89

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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.