Home / 16,091.20-22,206.24-10,782.40

Finding the Fourth Proportional to 16,091.20, 22,206.24 and 10,782.40

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Solution

The fourth proportional to 16,091.20, 22,206.24 and 10,782.40 is: 14,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,091.20 : 22,206.24 = 10,782.40 : x
  2. Step 2: Convert to fraction form
    16,091.20/22,206.24 = 10,782.40/x
  3. Step 3: Cross multiply
    16,091.20x = 22,206.24 × 10,782.40
  4. Step 4: Simplify right side
    16,091.20x = 239,436,562.18
  5. Step 5: Solve for x
    x = 239,436,562.18/16,091.20
  6. Step 6: Final answer
    x = 14,879.97

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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.