Home / 15,284.20-21,093.42-8,997.80

Finding the Fourth Proportional to 15,284.20, 21,093.42 and 8,997.80

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Solution

The fourth proportional to 15,284.20, 21,093.42 and 8,997.80 is: 12,417.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.20 : 21,093.42 = 8,997.80 : x
  2. Step 2: Convert to fraction form
    15,284.20/21,093.42 = 8,997.80/x
  3. Step 3: Cross multiply
    15,284.20x = 21,093.42 × 8,997.80
  4. Step 4: Simplify right side
    15,284.20x = 189,794,374.48
  5. Step 5: Solve for x
    x = 189,794,374.48/15,284.20
  6. Step 6: Final answer
    x = 12,417.68

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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.