Home / 16,396.96-22,622.40-9,320.80

Finding the Fourth Proportional to 16,396.96, 22,622.40 and 9,320.80

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Solution

The fourth proportional to 16,396.96, 22,622.40 and 9,320.80 is: 12,859.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,396.96 : 22,622.40 = 9,320.80 : x
  2. Step 2: Convert to fraction form
    16,396.96/22,622.40 = 9,320.80/x
  3. Step 3: Cross multiply
    16,396.96x = 22,622.40 × 9,320.80
  4. Step 4: Simplify right side
    16,396.96x = 210,858,865.92
  5. Step 5: Solve for x
    x = 210,858,865.92/16,396.96
  6. Step 6: Final answer
    x = 12,859.63

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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.