Home / 15,893.48-21,933.02-8,819.90

Finding the Fourth Proportional to 15,893.48, 21,933.02 and 8,819.90

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Solution

The fourth proportional to 15,893.48, 21,933.02 and 8,819.90 is: 12,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,893.48 : 21,933.02 = 8,819.90 : x
  2. Step 2: Convert to fraction form
    15,893.48/21,933.02 = 8,819.90/x
  3. Step 3: Cross multiply
    15,893.48x = 21,933.02 × 8,819.90
  4. Step 4: Simplify right side
    15,893.48x = 193,447,043.10
  5. Step 5: Solve for x
    x = 193,447,043.10/15,893.48
  6. Step 6: Final answer
    x = 12,171.47

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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.