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Finding the Fourth Proportional to 7,861.96, 10,848.72 and 4,459.12

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Solution

The fourth proportional to 7,861.96, 10,848.72 and 4,459.12 is: 6,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.96 : 10,848.72 = 4,459.12 : x
  2. Step 2: Convert to fraction form
    7,861.96/10,848.72 = 4,459.12/x
  3. Step 3: Cross multiply
    7,861.96x = 10,848.72 × 4,459.12
  4. Step 4: Simplify right side
    7,861.96x = 48,375,744.33
  5. Step 5: Solve for x
    x = 48,375,744.33/7,861.96
  6. Step 6: Final answer
    x = 6,153.14

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1.5x scale

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.