Home / 11,816.43-16,306.67-6,511.20

Finding the Fourth Proportional to 11,816.43, 16,306.67 and 6,511.20

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Solution

The fourth proportional to 11,816.43, 16,306.67 and 6,511.20 is: 8,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,816.43 : 16,306.67 = 6,511.20 : x
  2. Step 2: Convert to fraction form
    11,816.43/16,306.67 = 6,511.20/x
  3. Step 3: Cross multiply
    11,816.43x = 16,306.67 × 6,511.20
  4. Step 4: Simplify right side
    11,816.43x = 106,175,989.70
  5. Step 5: Solve for x
    x = 106,175,989.70/11,816.43
  6. Step 6: Final answer
    x = 8,985.45

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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.