Home / 15,850.99-21,874.10-8,777.26

Finding the Fourth Proportional to 15,850.99, 21,874.10 and 8,777.26

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Solution

The fourth proportional to 15,850.99, 21,874.10 and 8,777.26 is: 12,112.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.99 : 21,874.10 = 8,777.26 : x
  2. Step 2: Convert to fraction form
    15,850.99/21,874.10 = 8,777.26/x
  3. Step 3: Cross multiply
    15,850.99x = 21,874.10 × 8,777.26
  4. Step 4: Simplify right side
    15,850.99x = 191,994,695.79
  5. Step 5: Solve for x
    x = 191,994,695.79/15,850.99
  6. Step 6: Final answer
    x = 12,112.47

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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.