Home / 16,068.94-22,163.70-9,781.72

Finding the Fourth Proportional to 16,068.94, 22,163.70 and 9,781.72

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Solution

The fourth proportional to 16,068.94, 22,163.70 and 9,781.72 is: 13,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,068.94 : 22,163.70 = 9,781.72 : x
  2. Step 2: Convert to fraction form
    16,068.94/22,163.70 = 9,781.72/x
  3. Step 3: Cross multiply
    16,068.94x = 22,163.70 × 9,781.72
  4. Step 4: Simplify right side
    16,068.94x = 216,799,107.56
  5. Step 5: Solve for x
    x = 216,799,107.56/16,068.94
  6. Step 6: Final answer
    x = 13,491.81

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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.