Home / 11,138.08-15,370.55-6,102.62

Finding the Fourth Proportional to 11,138.08, 15,370.55 and 6,102.62

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Solution

The fourth proportional to 11,138.08, 15,370.55 and 6,102.62 is: 8,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.08 : 15,370.55 = 6,102.62 : x
  2. Step 2: Convert to fraction form
    11,138.08/15,370.55 = 6,102.62/x
  3. Step 3: Cross multiply
    11,138.08x = 15,370.55 × 6,102.62
  4. Step 4: Simplify right side
    11,138.08x = 93,800,595.33
  5. Step 5: Solve for x
    x = 93,800,595.33/11,138.08
  6. Step 6: Final answer
    x = 8,421.61

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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.