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Finding the Fourth Proportional to 16,660.08, 22,980.78 and 9,941.20

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Solution

The fourth proportional to 16,660.08, 22,980.78 and 9,941.20 is: 13,712.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.08 : 22,980.78 = 9,941.20 : x
  2. Step 2: Convert to fraction form
    16,660.08/22,980.78 = 9,941.20/x
  3. Step 3: Cross multiply
    16,660.08x = 22,980.78 × 9,941.20
  4. Step 4: Simplify right side
    16,660.08x = 228,456,530.14
  5. Step 5: Solve for x
    x = 228,456,530.14/16,660.08
  6. Step 6: Final answer
    x = 13,712.81

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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.