Home / 9,318.96-12,861.99-5,342.74

Finding the Fourth Proportional to 9,318.96, 12,861.99 and 5,342.74

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Solution

The fourth proportional to 9,318.96, 12,861.99 and 5,342.74 is: 7,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.96 : 12,861.99 = 5,342.74 : x
  2. Step 2: Convert to fraction form
    9,318.96/12,861.99 = 5,342.74/x
  3. Step 3: Cross multiply
    9,318.96x = 12,861.99 × 5,342.74
  4. Step 4: Simplify right side
    9,318.96x = 68,718,236.30
  5. Step 5: Solve for x
    x = 68,718,236.30/9,318.96
  6. Step 6: Final answer
    x = 7,374.02

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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.