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Finding the Fourth Proportional to 12,353.60, 17,047.96 and 6,764.60

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Solution

The fourth proportional to 12,353.60, 17,047.96 and 6,764.60 is: 9,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353.60 : 17,047.96 = 6,764.60 : x
  2. Step 2: Convert to fraction form
    12,353.60/17,047.96 = 6,764.60/x
  3. Step 3: Cross multiply
    12,353.60x = 17,047.96 × 6,764.60
  4. Step 4: Simplify right side
    12,353.60x = 115,322,630.22
  5. Step 5: Solve for x
    x = 115,322,630.22/12,353.60
  6. Step 6: Final answer
    x = 9,335.14

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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.