Home / 14,521.10-21,768.76-5,159.88

Finding the Fourth Proportional to 14,521.10, 21,768.76 and 5,159.88

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Solution

The fourth proportional to 14,521.10, 21,768.76 and 5,159.88 is: 7,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.10 : 21,768.76 = 5,159.88 : x
  2. Step 2: Convert to fraction form
    14,521.10/21,768.76 = 5,159.88/x
  3. Step 3: Cross multiply
    14,521.10x = 21,768.76 × 5,159.88
  4. Step 4: Simplify right side
    14,521.10x = 112,324,189.35
  5. Step 5: Solve for x
    x = 112,324,189.35/14,521.10
  6. Step 6: Final answer
    x = 7,735.24

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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.