Home / 12,739.12-17,593.32-8,770.48

Finding the Fourth Proportional to 12,739.12, 17,593.32 and 8,770.48

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Solution

The fourth proportional to 12,739.12, 17,593.32 and 8,770.48 is: 12,112.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.12 : 17,593.32 = 8,770.48 : x
  2. Step 2: Convert to fraction form
    12,739.12/17,593.32 = 8,770.48/x
  3. Step 3: Cross multiply
    12,739.12x = 17,593.32 × 8,770.48
  4. Step 4: Simplify right side
    12,739.12x = 154,301,861.19
  5. Step 5: Solve for x
    x = 154,301,861.19/12,739.12
  6. Step 6: Final answer
    x = 12,112.44

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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.