Home / 11,134.86-15,366.04-6,658.80

Finding the Fourth Proportional to 11,134.86, 15,366.04 and 6,658.80

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Solution

The fourth proportional to 11,134.86, 15,366.04 and 6,658.80 is: 9,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,134.86 : 15,366.04 = 6,658.80 : x
  2. Step 2: Convert to fraction form
    11,134.86/15,366.04 = 6,658.80/x
  3. Step 3: Cross multiply
    11,134.86x = 15,366.04 × 6,658.80
  4. Step 4: Simplify right side
    11,134.86x = 102,319,353.86
  5. Step 5: Solve for x
    x = 102,319,353.86/11,134.86
  6. Step 6: Final answer
    x = 9,189.10

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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.