Home / 7,644.32-11,457.27-6,638.57

Finding the Fourth Proportional to 7,644.32, 11,457.27 and 6,638.57

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Solution

The fourth proportional to 7,644.32, 11,457.27 and 6,638.57 is: 9,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,644.32 : 11,457.27 = 6,638.57 : x
  2. Step 2: Convert to fraction form
    7,644.32/11,457.27 = 6,638.57/x
  3. Step 3: Cross multiply
    7,644.32x = 11,457.27 × 6,638.57
  4. Step 4: Simplify right side
    7,644.32x = 76,059,831.62
  5. Step 5: Solve for x
    x = 76,059,831.62/7,644.32
  6. Step 6: Final answer
    x = 9,949.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.