Home / 11,990.43-16,559.64-9,127.22

Finding the Fourth Proportional to 11,990.43, 16,559.64 and 9,127.22

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Solution

The fourth proportional to 11,990.43, 16,559.64 and 9,127.22 is: 12,605.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.43 : 16,559.64 = 9,127.22 : x
  2. Step 2: Convert to fraction form
    11,990.43/16,559.64 = 9,127.22/x
  3. Step 3: Cross multiply
    11,990.43x = 16,559.64 × 9,127.22
  4. Step 4: Simplify right side
    11,990.43x = 151,143,394.60
  5. Step 5: Solve for x
    x = 151,143,394.60/11,990.43
  6. Step 6: Final answer
    x = 12,605.34

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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.