Home / 21,114.20-29,137.14-11,554.05

Finding the Fourth Proportional to 21,114.20, 29,137.14 and 11,554.05

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Solution

The fourth proportional to 21,114.20, 29,137.14 and 11,554.05 is: 15,944.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,114.20 : 29,137.14 = 11,554.05 : x
  2. Step 2: Convert to fraction form
    21,114.20/29,137.14 = 11,554.05/x
  3. Step 3: Cross multiply
    21,114.20x = 29,137.14 × 11,554.05
  4. Step 4: Simplify right side
    21,114.20x = 336,651,972.42
  5. Step 5: Solve for x
    x = 336,651,972.42/21,114.20
  6. Step 6: Final answer
    x = 15,944.34

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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.