Home / 16,660.20-22,991.16-9,106.41

Finding the Fourth Proportional to 16,660.20, 22,991.16 and 9,106.41

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Solution

The fourth proportional to 16,660.20, 22,991.16 and 9,106.41 is: 12,566.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.20 : 22,991.16 = 9,106.41 : x
  2. Step 2: Convert to fraction form
    16,660.20/22,991.16 = 9,106.41/x
  3. Step 3: Cross multiply
    16,660.20x = 22,991.16 × 9,106.41
  4. Step 4: Simplify right side
    16,660.20x = 209,366,929.34
  5. Step 5: Solve for x
    x = 209,366,929.34/16,660.20
  6. Step 6: Final answer
    x = 12,566.89

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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.