Home / 11,690.06-16,132.18-6,384.88

Finding the Fourth Proportional to 11,690.06, 16,132.18 and 6,384.88

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Solution

The fourth proportional to 11,690.06, 16,132.18 and 6,384.88 is: 8,811.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.06 : 16,132.18 = 6,384.88 : x
  2. Step 2: Convert to fraction form
    11,690.06/16,132.18 = 6,384.88/x
  3. Step 3: Cross multiply
    11,690.06x = 16,132.18 × 6,384.88
  4. Step 4: Simplify right side
    11,690.06x = 103,001,958.87
  5. Step 5: Solve for x
    x = 103,001,958.87/11,690.06
  6. Step 6: Final answer
    x = 8,811.08

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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.