Home / 12,086.33-18,127.40-3,319.16

Finding the Fourth Proportional to 12,086.33, 18,127.40 and 3,319.16

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Solution

The fourth proportional to 12,086.33, 18,127.40 and 3,319.16 is: 4,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.33 : 18,127.40 = 3,319.16 : x
  2. Step 2: Convert to fraction form
    12,086.33/18,127.40 = 3,319.16/x
  3. Step 3: Cross multiply
    12,086.33x = 18,127.40 × 3,319.16
  4. Step 4: Simplify right side
    12,086.33x = 60,167,633.75
  5. Step 5: Solve for x
    x = 60,167,633.75/12,086.33
  6. Step 6: Final answer
    x = 4,978.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.