Home / 11,911.47-16,437.57-6,606.18

Finding the Fourth Proportional to 11,911.47, 16,437.57 and 6,606.18

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Solution

The fourth proportional to 11,911.47, 16,437.57 and 6,606.18 is: 9,116.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.47 : 16,437.57 = 6,606.18 : x
  2. Step 2: Convert to fraction form
    11,911.47/16,437.57 = 6,606.18/x
  3. Step 3: Cross multiply
    11,911.47x = 16,437.57 × 6,606.18
  4. Step 4: Simplify right side
    11,911.47x = 108,589,546.18
  5. Step 5: Solve for x
    x = 108,589,546.18/11,911.47
  6. Step 6: Final answer
    x = 9,116.38

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Half scale
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Double scale
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Similar ratio
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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.