Home / 16,518.20-22,789.13-10,855.98

Finding the Fourth Proportional to 16,518.20, 22,789.13 and 10,855.98

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Solution

The fourth proportional to 16,518.20, 22,789.13 and 10,855.98 is: 14,977.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,518.20 : 22,789.13 = 10,855.98 : x
  2. Step 2: Convert to fraction form
    16,518.20/22,789.13 = 10,855.98/x
  3. Step 3: Cross multiply
    16,518.20x = 22,789.13 × 10,855.98
  4. Step 4: Simplify right side
    16,518.20x = 247,398,285.22
  5. Step 5: Solve for x
    x = 247,398,285.22/16,518.20
  6. Step 6: Final answer
    x = 14,977.32

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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.