Home / 13,623.05-18,799.21-7,958.32

Finding the Fourth Proportional to 13,623.05, 18,799.21 and 7,958.32

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Solution

The fourth proportional to 13,623.05, 18,799.21 and 7,958.32 is: 10,982.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.05 : 18,799.21 = 7,958.32 : x
  2. Step 2: Convert to fraction form
    13,623.05/18,799.21 = 7,958.32/x
  3. Step 3: Cross multiply
    13,623.05x = 18,799.21 × 7,958.32
  4. Step 4: Simplify right side
    13,623.05x = 149,610,132.53
  5. Step 5: Solve for x
    x = 149,610,132.53/13,623.05
  6. Step 6: Final answer
    x = 10,982.13

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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.