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Finding the Fourth Proportional to 6,715.30, 10,074.30 and 5,627.20

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Solution

The fourth proportional to 6,715.30, 10,074.30 and 5,627.20 is: 8,441.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,715.30 : 10,074.30 = 5,627.20 : x
  2. Step 2: Convert to fraction form
    6,715.30/10,074.30 = 5,627.20/x
  3. Step 3: Cross multiply
    6,715.30x = 10,074.30 × 5,627.20
  4. Step 4: Simplify right side
    6,715.30x = 56,690,100.96
  5. Step 5: Solve for x
    x = 56,690,100.96/6,715.30
  6. Step 6: Final answer
    x = 8,441.93

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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.