Home / 11,138.32-15,370.87-6,102.86

Finding the Fourth Proportional to 11,138.32, 15,370.87 and 6,102.86

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Solution

The fourth proportional to 11,138.32, 15,370.87 and 6,102.86 is: 8,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.32 : 15,370.87 = 6,102.86 : x
  2. Step 2: Convert to fraction form
    11,138.32/15,370.87 = 6,102.86/x
  3. Step 3: Cross multiply
    11,138.32x = 15,370.87 × 6,102.86
  4. Step 4: Simplify right side
    11,138.32x = 93,806,175.58
  5. Step 5: Solve for x
    x = 93,806,175.58/11,138.32
  6. Step 6: Final answer
    x = 8,421.93

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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.