Home / 10,662.32-15,997.62-4,420.76

Finding the Fourth Proportional to 10,662.32, 15,997.62 and 4,420.76

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Solution

The fourth proportional to 10,662.32, 15,997.62 and 4,420.76 is: 6,632.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662.32 : 15,997.62 = 4,420.76 : x
  2. Step 2: Convert to fraction form
    10,662.32/15,997.62 = 4,420.76/x
  3. Step 3: Cross multiply
    10,662.32x = 15,997.62 × 4,420.76
  4. Step 4: Simplify right side
    10,662.32x = 70,721,558.60
  5. Step 5: Solve for x
    x = 70,721,558.60/10,662.32
  6. Step 6: Final answer
    x = 6,632.85

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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.