Home / 16,555.68-22,855.30-12,770.35

Finding the Fourth Proportional to 16,555.68, 22,855.30 and 12,770.35

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Solution

The fourth proportional to 16,555.68, 22,855.30 and 12,770.35 is: 17,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,555.68 : 22,855.30 = 12,770.35 : x
  2. Step 2: Convert to fraction form
    16,555.68/22,855.30 = 12,770.35/x
  3. Step 3: Cross multiply
    16,555.68x = 22,855.30 × 12,770.35
  4. Step 4: Simplify right side
    16,555.68x = 291,870,180.36
  5. Step 5: Solve for x
    x = 291,870,180.36/16,555.68
  6. Step 6: Final answer
    x = 17,629.61

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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.