Home / 18,321.32-27,483.60-9,997.76

Finding the Fourth Proportional to 18,321.32, 27,483.60 and 9,997.76

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Solution

The fourth proportional to 18,321.32, 27,483.60 and 9,997.76 is: 14,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321.32 : 27,483.60 = 9,997.76 : x
  2. Step 2: Convert to fraction form
    18,321.32/27,483.60 = 9,997.76/x
  3. Step 3: Cross multiply
    18,321.32x = 27,483.60 × 9,997.76
  4. Step 4: Simplify right side
    18,321.32x = 274,774,542.94
  5. Step 5: Solve for x
    x = 274,774,542.94/18,321.32
  6. Step 6: Final answer
    x = 14,997.53

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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.