Home / 11,210.09-16,817.55-3,418.70

Finding the Fourth Proportional to 11,210.09, 16,817.55 and 3,418.70

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Solution

The fourth proportional to 11,210.09, 16,817.55 and 3,418.70 is: 5,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.09 : 16,817.55 = 3,418.70 : x
  2. Step 2: Convert to fraction form
    11,210.09/16,817.55 = 3,418.70/x
  3. Step 3: Cross multiply
    11,210.09x = 16,817.55 × 3,418.70
  4. Step 4: Simplify right side
    11,210.09x = 57,494,158.19
  5. Step 5: Solve for x
    x = 57,494,158.19/11,210.09
  6. Step 6: Final answer
    x = 5,128.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.