Home / 11,816.03-16,306.49-6,781.17

Finding the Fourth Proportional to 11,816.03, 16,306.49 and 6,781.17

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Solution

The fourth proportional to 11,816.03, 16,306.49 and 6,781.17 is: 9,358.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.03 : 16,306.49 = 6,781.17 : x
  2. Step 2: Convert to fraction form
    11,816.03/16,306.49 = 6,781.17/x
  3. Step 3: Cross multiply
    11,816.03x = 16,306.49 × 6,781.17
  4. Step 4: Simplify right side
    11,816.03x = 110,577,048.10
  5. Step 5: Solve for x
    x = 110,577,048.10/11,816.03
  6. Step 6: Final answer
    x = 9,358.23

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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.