Home / 7,861.12-10,849.04-4,505

Finding the Fourth Proportional to 7,861.12, 10,849.04 and 4,505

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Solution

The fourth proportional to 7,861.12, 10,849.04 and 4,505 is: 6,217.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.12 : 10,849.04 = 4,505 : x
  2. Step 2: Convert to fraction form
    7,861.12/10,849.04 = 4,505/x
  3. Step 3: Cross multiply
    7,861.12x = 10,849.04 × 4,505
  4. Step 4: Simplify right side
    7,861.12x = 48,874,925.20
  5. Step 5: Solve for x
    x = 48,874,925.20/7,861.12
  6. Step 6: Final answer
    x = 6,217.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.