Home / 18,976.24-28,461.06-5,122

Finding the Fourth Proportional to 18,976.24, 28,461.06 and 5,122

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Solution

The fourth proportional to 18,976.24, 28,461.06 and 5,122 is: 7,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.24 : 28,461.06 = 5,122 : x
  2. Step 2: Convert to fraction form
    18,976.24/28,461.06 = 5,122/x
  3. Step 3: Cross multiply
    18,976.24x = 28,461.06 × 5,122
  4. Step 4: Simplify right side
    18,976.24x = 145,777,549.32
  5. Step 5: Solve for x
    x = 145,777,549.32/18,976.24
  6. Step 6: Final answer
    x = 7,682.11

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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.