Home / 15,850.71-21,874.73-8,777.25

Finding the Fourth Proportional to 15,850.71, 21,874.73 and 8,777.25

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Solution

The fourth proportional to 15,850.71, 21,874.73 and 8,777.25 is: 12,113.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.71 : 21,874.73 = 8,777.25 : x
  2. Step 2: Convert to fraction form
    15,850.71/21,874.73 = 8,777.25/x
  3. Step 3: Cross multiply
    15,850.71x = 21,874.73 × 8,777.25
  4. Step 4: Simplify right side
    15,850.71x = 191,999,930.01
  5. Step 5: Solve for x
    x = 191,999,930.01/15,850.71
  6. Step 6: Final answer
    x = 12,113.02

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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.