Home / 17,490.84-26,212.74-7,991.34

Finding the Fourth Proportional to 17,490.84, 26,212.74 and 7,991.34

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Solution

The fourth proportional to 17,490.84, 26,212.74 and 7,991.34 is: 11,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,490.84 : 26,212.74 = 7,991.34 : x
  2. Step 2: Convert to fraction form
    17,490.84/26,212.74 = 7,991.34/x
  3. Step 3: Cross multiply
    17,490.84x = 26,212.74 × 7,991.34
  4. Step 4: Simplify right side
    17,490.84x = 209,474,917.67
  5. Step 5: Solve for x
    x = 209,474,917.67/17,490.84
  6. Step 6: Final answer
    x = 11,976.26

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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.