Home / 18,258.08-27,388.74-5,110.57

Finding the Fourth Proportional to 18,258.08, 27,388.74 and 5,110.57

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Solution

The fourth proportional to 18,258.08, 27,388.74 and 5,110.57 is: 7,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,258.08 : 27,388.74 = 5,110.57 : x
  2. Step 2: Convert to fraction form
    18,258.08/27,388.74 = 5,110.57/x
  3. Step 3: Cross multiply
    18,258.08x = 27,388.74 × 5,110.57
  4. Step 4: Simplify right side
    18,258.08x = 139,971,936.04
  5. Step 5: Solve for x
    x = 139,971,936.04/18,258.08
  6. Step 6: Final answer
    x = 7,666.30

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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.