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Finding the Fourth Proportional to 16,114.86, 22,215.20 and 11,320.20

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Solution

The fourth proportional to 16,114.86, 22,215.20 and 11,320.20 is: 15,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,114.86 : 22,215.20 = 11,320.20 : x
  2. Step 2: Convert to fraction form
    16,114.86/22,215.20 = 11,320.20/x
  3. Step 3: Cross multiply
    16,114.86x = 22,215.20 × 11,320.20
  4. Step 4: Simplify right side
    16,114.86x = 251,480,450.44
  5. Step 5: Solve for x
    x = 251,480,450.44/16,114.86
  6. Step 6: Final answer
    x = 15,605.50

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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.