Home / 11,116.69-15,339.14-6,868.44

Finding the Fourth Proportional to 11,116.69, 15,339.14 and 6,868.44

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Solution

The fourth proportional to 11,116.69, 15,339.14 and 6,868.44 is: 9,477.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.69 : 15,339.14 = 6,868.44 : x
  2. Step 2: Convert to fraction form
    11,116.69/15,339.14 = 6,868.44/x
  3. Step 3: Cross multiply
    11,116.69x = 15,339.14 × 6,868.44
  4. Step 4: Simplify right side
    11,116.69x = 105,355,979.91
  5. Step 5: Solve for x
    x = 105,355,979.91/11,116.69
  6. Step 6: Final answer
    x = 9,477.28

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Half scale
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Double scale
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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.