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Finding the Fourth Proportional to 12,901.33, 17,803.97 and 7,236.28

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Solution

The fourth proportional to 12,901.33, 17,803.97 and 7,236.28 is: 9,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.33 : 17,803.97 = 7,236.28 : x
  2. Step 2: Convert to fraction form
    12,901.33/17,803.97 = 7,236.28/x
  3. Step 3: Cross multiply
    12,901.33x = 17,803.97 × 7,236.28
  4. Step 4: Simplify right side
    12,901.33x = 128,834,512.03
  5. Step 5: Solve for x
    x = 128,834,512.03/12,901.33
  6. Step 6: Final answer
    x = 9,986.14

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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.