Home / 11,209.09-16,816.05-3,417.70

Finding the Fourth Proportional to 11,209.09, 16,816.05 and 3,417.70

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Solution

The fourth proportional to 11,209.09, 16,816.05 and 3,417.70 is: 5,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.09 : 16,816.05 = 3,417.70 : x
  2. Step 2: Convert to fraction form
    11,209.09/16,816.05 = 3,417.70/x
  3. Step 3: Cross multiply
    11,209.09x = 16,816.05 × 3,417.70
  4. Step 4: Simplify right side
    11,209.09x = 57,472,214.09
  5. Step 5: Solve for x
    x = 57,472,214.09/11,209.09
  6. Step 6: Final answer
    x = 5,127.29

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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.