Home / 11,537.28-15,920.46-6,499.86

Finding the Fourth Proportional to 11,537.28, 15,920.46 and 6,499.86

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Solution

The fourth proportional to 11,537.28, 15,920.46 and 6,499.86 is: 8,969.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,537.28 : 15,920.46 = 6,499.86 : x
  2. Step 2: Convert to fraction form
    11,537.28/15,920.46 = 6,499.86/x
  3. Step 3: Cross multiply
    11,537.28x = 15,920.46 × 6,499.86
  4. Step 4: Simplify right side
    11,537.28x = 103,480,761.14
  5. Step 5: Solve for x
    x = 103,480,761.14/11,537.28
  6. Step 6: Final answer
    x = 8,969.25

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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.