Home / 10,850.80-16,276.20-7,157.20

Finding the Fourth Proportional to 10,850.80, 16,276.20 and 7,157.20

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Solution

The fourth proportional to 10,850.80, 16,276.20 and 7,157.20 is: 10,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,850.80 : 16,276.20 = 7,157.20 : x
  2. Step 2: Convert to fraction form
    10,850.80/16,276.20 = 7,157.20/x
  3. Step 3: Cross multiply
    10,850.80x = 16,276.20 × 7,157.20
  4. Step 4: Simplify right side
    10,850.80x = 116,492,018.64
  5. Step 5: Solve for x
    x = 116,492,018.64/10,850.80
  6. Step 6: Final answer
    x = 10,735.80

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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.