Home / 10,660.55-15,997.74-4,817.21

Finding the Fourth Proportional to 10,660.55, 15,997.74 and 4,817.21

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Solution

The fourth proportional to 10,660.55, 15,997.74 and 4,817.21 is: 7,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.55 : 15,997.74 = 4,817.21 : x
  2. Step 2: Convert to fraction form
    10,660.55/15,997.74 = 4,817.21/x
  3. Step 3: Cross multiply
    10,660.55x = 15,997.74 × 4,817.21
  4. Step 4: Simplify right side
    10,660.55x = 77,064,375.05
  5. Step 5: Solve for x
    x = 77,064,375.05/10,660.55
  6. Step 6: Final answer
    x = 7,228.93

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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.