Home / 10,880.56-16,320.84-7,181.92

Finding the Fourth Proportional to 10,880.56, 16,320.84 and 7,181.92

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Solution

The fourth proportional to 10,880.56, 16,320.84 and 7,181.92 is: 10,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.56 : 16,320.84 = 7,181.92 : x
  2. Step 2: Convert to fraction form
    10,880.56/16,320.84 = 7,181.92/x
  3. Step 3: Cross multiply
    10,880.56x = 16,320.84 × 7,181.92
  4. Step 4: Simplify right side
    10,880.56x = 117,214,984.86
  5. Step 5: Solve for x
    x = 117,214,984.86/10,880.56
  6. Step 6: Final answer
    x = 10,772.88

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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.