Home / 11,772.18-16,238.41-6,988.88

Finding the Fourth Proportional to 11,772.18, 16,238.41 and 6,988.88

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Solution

The fourth proportional to 11,772.18, 16,238.41 and 6,988.88 is: 9,640.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,772.18 : 16,238.41 = 6,988.88 : x
  2. Step 2: Convert to fraction form
    11,772.18/16,238.41 = 6,988.88/x
  3. Step 3: Cross multiply
    11,772.18x = 16,238.41 × 6,988.88
  4. Step 4: Simplify right side
    11,772.18x = 113,488,287.32
  5. Step 5: Solve for x
    x = 113,488,287.32/11,772.18
  6. Step 6: Final answer
    x = 9,640.38

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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.