Home / 14,578.39-21,862.22-5,215.87

Finding the Fourth Proportional to 14,578.39, 21,862.22 and 5,215.87

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Solution

The fourth proportional to 14,578.39, 21,862.22 and 5,215.87 is: 7,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,578.39 : 21,862.22 = 5,215.87 : x
  2. Step 2: Convert to fraction form
    14,578.39/21,862.22 = 5,215.87/x
  3. Step 3: Cross multiply
    14,578.39x = 21,862.22 × 5,215.87
  4. Step 4: Simplify right side
    14,578.39x = 114,030,416.70
  5. Step 5: Solve for x
    x = 114,030,416.70/14,578.39
  6. Step 6: Final answer
    x = 7,821.88

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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.