Home / 9,742.92-13,446.48-6,388.56

Finding the Fourth Proportional to 9,742.92, 13,446.48 and 6,388.56

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Solution

The fourth proportional to 9,742.92, 13,446.48 and 6,388.56 is: 8,817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,742.92 : 13,446.48 = 6,388.56 : x
  2. Step 2: Convert to fraction form
    9,742.92/13,446.48 = 6,388.56/x
  3. Step 3: Cross multiply
    9,742.92x = 13,446.48 × 6,388.56
  4. Step 4: Simplify right side
    9,742.92x = 85,903,644.27
  5. Step 5: Solve for x
    x = 85,903,644.27/9,742.92
  6. Step 6: Final answer
    x = 8,817.03

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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.