Home / 14,521.43-21,782.28-5,161.61

Finding the Fourth Proportional to 14,521.43, 21,782.28 and 5,161.61

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Solution

The fourth proportional to 14,521.43, 21,782.28 and 5,161.61 is: 7,742.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.43 : 21,782.28 = 5,161.61 : x
  2. Step 2: Convert to fraction form
    14,521.43/21,782.28 = 5,161.61/x
  3. Step 3: Cross multiply
    14,521.43x = 21,782.28 × 5,161.61
  4. Step 4: Simplify right side
    14,521.43x = 112,431,634.27
  5. Step 5: Solve for x
    x = 112,431,634.27/14,521.43
  6. Step 6: Final answer
    x = 7,742.46

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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.