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Finding the Fourth Proportional to 15,893, 21,932.40 and 8,820.44

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Solution

The fourth proportional to 15,893, 21,932.40 and 8,820.44 is: 12,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893 : 21,932.40 = 8,820.44 : x
  2. Step 2: Convert to fraction form
    15,893/21,932.40 = 8,820.44/x
  3. Step 3: Cross multiply
    15,893x = 21,932.40 × 8,820.44
  4. Step 4: Simplify right side
    15,893x = 193,453,418.26
  5. Step 5: Solve for x
    x = 193,453,418.26/15,893
  6. Step 6: Final answer
    x = 12,172.24

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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.