Home / 11,756.38-16,223.96-6,378.86

Finding the Fourth Proportional to 11,756.38, 16,223.96 and 6,378.86

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Solution

The fourth proportional to 11,756.38, 16,223.96 and 6,378.86 is: 8,802.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,756.38 : 16,223.96 = 6,378.86 : x
  2. Step 2: Convert to fraction form
    11,756.38/16,223.96 = 6,378.86/x
  3. Step 3: Cross multiply
    11,756.38x = 16,223.96 × 6,378.86
  4. Step 4: Simplify right side
    11,756.38x = 103,490,369.49
  5. Step 5: Solve for x
    x = 103,490,369.49/11,756.38
  6. Step 6: Final answer
    x = 8,802.91

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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.