Home / 21,196.38-29,248.47-11,763.66

Finding the Fourth Proportional to 21,196.38, 29,248.47 and 11,763.66

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Solution

The fourth proportional to 21,196.38, 29,248.47 and 11,763.66 is: 16,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.38 : 29,248.47 = 11,763.66 : x
  2. Step 2: Convert to fraction form
    21,196.38/29,248.47 = 11,763.66/x
  3. Step 3: Cross multiply
    21,196.38x = 29,248.47 × 11,763.66
  4. Step 4: Simplify right side
    21,196.38x = 344,069,056.60
  5. Step 5: Solve for x
    x = 344,069,056.60/21,196.38
  6. Step 6: Final answer
    x = 16,232.44

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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.