Home / 21,196.80-29,252.32-11,765.52

Finding the Fourth Proportional to 21,196.80, 29,252.32 and 11,765.52

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Solution

The fourth proportional to 21,196.80, 29,252.32 and 11,765.52 is: 16,236.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.80 : 29,252.32 = 11,765.52 : x
  2. Step 2: Convert to fraction form
    21,196.80/29,252.32 = 11,765.52/x
  3. Step 3: Cross multiply
    21,196.80x = 29,252.32 × 11,765.52
  4. Step 4: Simplify right side
    21,196.80x = 344,168,756.01
  5. Step 5: Solve for x
    x = 344,168,756.01/21,196.80
  6. Step 6: Final answer
    x = 16,236.83

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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.