Home / 16,660.57-22,991.53-9,106.90

Finding the Fourth Proportional to 16,660.57, 22,991.53 and 9,106.90

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Solution

The fourth proportional to 16,660.57, 22,991.53 and 9,106.90 is: 12,567.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.57 : 22,991.53 = 9,106.90 : x
  2. Step 2: Convert to fraction form
    16,660.57/22,991.53 = 9,106.90/x
  3. Step 3: Cross multiply
    16,660.57x = 22,991.53 × 9,106.90
  4. Step 4: Simplify right side
    16,660.57x = 209,381,501.39
  5. Step 5: Solve for x
    x = 209,381,501.39/16,660.57
  6. Step 6: Final answer
    x = 12,567.49

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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.