Home / 18,406.05-27,609.32-5,258.85

Finding the Fourth Proportional to 18,406.05, 27,609.32 and 5,258.85

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Solution

The fourth proportional to 18,406.05, 27,609.32 and 5,258.85 is: 7,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.05 : 27,609.32 = 5,258.85 : x
  2. Step 2: Convert to fraction form
    18,406.05/27,609.32 = 5,258.85/x
  3. Step 3: Cross multiply
    18,406.05x = 27,609.32 × 5,258.85
  4. Step 4: Simplify right side
    18,406.05x = 145,193,272.48
  5. Step 5: Solve for x
    x = 145,193,272.48/18,406.05
  6. Step 6: Final answer
    x = 7,888.34

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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.