Home / 15,884.98-21,921.60-9,511.85

Finding the Fourth Proportional to 15,884.98, 21,921.60 and 9,511.85

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Solution

The fourth proportional to 15,884.98, 21,921.60 and 9,511.85 is: 13,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,884.98 : 21,921.60 = 9,511.85 : x
  2. Step 2: Convert to fraction form
    15,884.98/21,921.60 = 9,511.85/x
  3. Step 3: Cross multiply
    15,884.98x = 21,921.60 × 9,511.85
  4. Step 4: Simplify right side
    15,884.98x = 208,514,923.40
  5. Step 5: Solve for x
    x = 208,514,923.40/15,884.98
  6. Step 6: Final answer
    x = 13,126.55

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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.