Home / 12,972.36-17,887.62-8,773.32

Finding the Fourth Proportional to 12,972.36, 17,887.62 and 8,773.32

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Solution

The fourth proportional to 12,972.36, 17,887.62 and 8,773.32 is: 12,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.36 : 17,887.62 = 8,773.32 : x
  2. Step 2: Convert to fraction form
    12,972.36/17,887.62 = 8,773.32/x
  3. Step 3: Cross multiply
    12,972.36x = 17,887.62 × 8,773.32
  4. Step 4: Simplify right side
    12,972.36x = 156,933,814.30
  5. Step 5: Solve for x
    x = 156,933,814.30/12,972.36
  6. Step 6: Final answer
    x = 12,097.55

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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.