Home / 15,876.18-21,896.49-10,211.58

Finding the Fourth Proportional to 15,876.18, 21,896.49 and 10,211.58

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Solution

The fourth proportional to 15,876.18, 21,896.49 and 10,211.58 is: 14,083.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.18 : 21,896.49 = 10,211.58 : x
  2. Step 2: Convert to fraction form
    15,876.18/21,896.49 = 10,211.58/x
  3. Step 3: Cross multiply
    15,876.18x = 21,896.49 × 10,211.58
  4. Step 4: Simplify right side
    15,876.18x = 223,597,759.35
  5. Step 5: Solve for x
    x = 223,597,759.35/15,876.18
  6. Step 6: Final answer
    x = 14,083.85

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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.