Home / 17,376.05-23,970.12-10,991.89

Finding the Fourth Proportional to 17,376.05, 23,970.12 and 10,991.89

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Solution

The fourth proportional to 17,376.05, 23,970.12 and 10,991.89 is: 15,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.05 : 23,970.12 = 10,991.89 : x
  2. Step 2: Convert to fraction form
    17,376.05/23,970.12 = 10,991.89/x
  3. Step 3: Cross multiply
    17,376.05x = 23,970.12 × 10,991.89
  4. Step 4: Simplify right side
    17,376.05x = 263,476,867.37
  5. Step 5: Solve for x
    x = 263,476,867.37/17,376.05
  6. Step 6: Final answer
    x = 15,163.22

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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.