Home / 18,819.48-25,971.02-12,850.99

Finding the Fourth Proportional to 18,819.48, 25,971.02 and 12,850.99

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Solution

The fourth proportional to 18,819.48, 25,971.02 and 12,850.99 is: 17,734.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.48 : 25,971.02 = 12,850.99 : x
  2. Step 2: Convert to fraction form
    18,819.48/25,971.02 = 12,850.99/x
  3. Step 3: Cross multiply
    18,819.48x = 25,971.02 × 12,850.99
  4. Step 4: Simplify right side
    18,819.48x = 333,753,318.31
  5. Step 5: Solve for x
    x = 333,753,318.31/18,819.48
  6. Step 6: Final answer
    x = 17,734.46

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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.