Home / 18,972.32-28,449.62-11,077.12

Finding the Fourth Proportional to 18,972.32, 28,449.62 and 11,077.12

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Solution

The fourth proportional to 18,972.32, 28,449.62 and 11,077.12 is: 16,610.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.32 : 28,449.62 = 11,077.12 : x
  2. Step 2: Convert to fraction form
    18,972.32/28,449.62 = 11,077.12/x
  3. Step 3: Cross multiply
    18,972.32x = 28,449.62 × 11,077.12
  4. Step 4: Simplify right side
    18,972.32x = 315,139,657.06
  5. Step 5: Solve for x
    x = 315,139,657.06/18,972.32
  6. Step 6: Final answer
    x = 16,610.50

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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.