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Finding the Fourth Proportional to 7,153.56, 10,735.20 and 3,866.99

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Solution

The fourth proportional to 7,153.56, 10,735.20 and 3,866.99 is: 5,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.56 : 10,735.20 = 3,866.99 : x
  2. Step 2: Convert to fraction form
    7,153.56/10,735.20 = 3,866.99/x
  3. Step 3: Cross multiply
    7,153.56x = 10,735.20 × 3,866.99
  4. Step 4: Simplify right side
    7,153.56x = 41,512,857.37
  5. Step 5: Solve for x
    x = 41,512,857.37/7,153.56
  6. Step 6: Final answer
    x = 5,803.10

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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.