Home / 18,277.85-27,419.21-5,130.34

Finding the Fourth Proportional to 18,277.85, 27,419.21 and 5,130.34

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Solution

The fourth proportional to 18,277.85, 27,419.21 and 5,130.34 is: 7,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.85 : 27,419.21 = 5,130.34 : x
  2. Step 2: Convert to fraction form
    18,277.85/27,419.21 = 5,130.34/x
  3. Step 3: Cross multiply
    18,277.85x = 27,419.21 × 5,130.34
  4. Step 4: Simplify right side
    18,277.85x = 140,669,794.87
  5. Step 5: Solve for x
    x = 140,669,794.87/18,277.85
  6. Step 6: Final answer
    x = 7,696.19

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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.