Home / 11,613.76-16,029.12-6,900.64

Finding the Fourth Proportional to 11,613.76, 16,029.12 and 6,900.64

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Solution

The fourth proportional to 11,613.76, 16,029.12 and 6,900.64 is: 9,524.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,613.76 : 16,029.12 = 6,900.64 : x
  2. Step 2: Convert to fraction form
    11,613.76/16,029.12 = 6,900.64/x
  3. Step 3: Cross multiply
    11,613.76x = 16,029.12 × 6,900.64
  4. Step 4: Simplify right side
    11,613.76x = 110,611,186.64
  5. Step 5: Solve for x
    x = 110,611,186.64/11,613.76
  6. Step 6: Final answer
    x = 9,524.15

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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.