Home / 9,319.70-12,861.92-5,341.79

Finding the Fourth Proportional to 9,319.70, 12,861.92 and 5,341.79

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Solution

The fourth proportional to 9,319.70, 12,861.92 and 5,341.79 is: 7,372.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.70 : 12,861.92 = 5,341.79 : x
  2. Step 2: Convert to fraction form
    9,319.70/12,861.92 = 5,341.79/x
  3. Step 3: Cross multiply
    9,319.70x = 12,861.92 × 5,341.79
  4. Step 4: Simplify right side
    9,319.70x = 68,705,675.64
  5. Step 5: Solve for x
    x = 68,705,675.64/9,319.70
  6. Step 6: Final answer
    x = 7,372.09

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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.