Home / 16,391.49-22,620.01-9,220.86

Finding the Fourth Proportional to 16,391.49, 22,620.01 and 9,220.86

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Solution

The fourth proportional to 16,391.49, 22,620.01 and 9,220.86 is: 12,724.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.49 : 22,620.01 = 9,220.86 : x
  2. Step 2: Convert to fraction form
    16,391.49/22,620.01 = 9,220.86/x
  3. Step 3: Cross multiply
    16,391.49x = 22,620.01 × 9,220.86
  4. Step 4: Simplify right side
    16,391.49x = 208,575,786.20
  5. Step 5: Solve for x
    x = 208,575,786.20/16,391.49
  6. Step 6: Final answer
    x = 12,724.64

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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.