Home / 15,878.89-21,922.91-10,216.27

Finding the Fourth Proportional to 15,878.89, 21,922.91 and 10,216.27

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Solution

The fourth proportional to 15,878.89, 21,922.91 and 10,216.27 is: 14,104.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,878.89 : 21,922.91 = 10,216.27 : x
  2. Step 2: Convert to fraction form
    15,878.89/21,922.91 = 10,216.27/x
  3. Step 3: Cross multiply
    15,878.89x = 21,922.91 × 10,216.27
  4. Step 4: Simplify right side
    15,878.89x = 223,970,367.75
  5. Step 5: Solve for x
    x = 223,970,367.75/15,878.89
  6. Step 6: Final answer
    x = 14,104.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.