Home / 11,110.13-16,665.80-3,319.55

Finding the Fourth Proportional to 11,110.13, 16,665.80 and 3,319.55

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Solution

The fourth proportional to 11,110.13, 16,665.80 and 3,319.55 is: 4,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,110.13 : 16,665.80 = 3,319.55 : x
  2. Step 2: Convert to fraction form
    11,110.13/16,665.80 = 3,319.55/x
  3. Step 3: Cross multiply
    11,110.13x = 16,665.80 × 3,319.55
  4. Step 4: Simplify right side
    11,110.13x = 55,322,856.46
  5. Step 5: Solve for x
    x = 55,322,856.46/11,110.13
  6. Step 6: Final answer
    x = 4,979.50

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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.