Home / 12,832.81-17,708.13-7,166.77

Finding the Fourth Proportional to 12,832.81, 17,708.13 and 7,166.77

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Solution

The fourth proportional to 12,832.81, 17,708.13 and 7,166.77 is: 9,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,832.81 : 17,708.13 = 7,166.77 : x
  2. Step 2: Convert to fraction form
    12,832.81/17,708.13 = 7,166.77/x
  3. Step 3: Cross multiply
    12,832.81x = 17,708.13 × 7,166.77
  4. Step 4: Simplify right side
    12,832.81x = 126,910,090.10
  5. Step 5: Solve for x
    x = 126,910,090.10/12,832.81
  6. Step 6: Final answer
    x = 9,889.50

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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.