Home / 14,471.08-21,708.42-5,109.20

Finding the Fourth Proportional to 14,471.08, 21,708.42 and 5,109.20

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Solution

The fourth proportional to 14,471.08, 21,708.42 and 5,109.20 is: 7,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,471.08 : 21,708.42 = 5,109.20 : x
  2. Step 2: Convert to fraction form
    14,471.08/21,708.42 = 5,109.20/x
  3. Step 3: Cross multiply
    14,471.08x = 21,708.42 × 5,109.20
  4. Step 4: Simplify right side
    14,471.08x = 110,912,659.46
  5. Step 5: Solve for x
    x = 110,912,659.46/14,471.08
  6. Step 6: Final answer
    x = 7,664.44

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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.