Home / 11,162.86-15,404.11-6,685.59

Finding the Fourth Proportional to 11,162.86, 15,404.11 and 6,685.59

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Solution

The fourth proportional to 11,162.86, 15,404.11 and 6,685.59 is: 9,225.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.86 : 15,404.11 = 6,685.59 : x
  2. Step 2: Convert to fraction form
    11,162.86/15,404.11 = 6,685.59/x
  3. Step 3: Cross multiply
    11,162.86x = 15,404.11 × 6,685.59
  4. Step 4: Simplify right side
    11,162.86x = 102,985,563.77
  5. Step 5: Solve for x
    x = 102,985,563.77/11,162.86
  6. Step 6: Final answer
    x = 9,225.73

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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.