Home / 11,689.80-16,132.18-6,384.84

Finding the Fourth Proportional to 11,689.80, 16,132.18 and 6,384.84

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Solution

The fourth proportional to 11,689.80, 16,132.18 and 6,384.84 is: 8,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.80 : 16,132.18 = 6,384.84 : x
  2. Step 2: Convert to fraction form
    11,689.80/16,132.18 = 6,384.84/x
  3. Step 3: Cross multiply
    11,689.80x = 16,132.18 × 6,384.84
  4. Step 4: Simplify right side
    11,689.80x = 103,001,388.15
  5. Step 5: Solve for x
    x = 103,001,388.15/11,689.80
  6. Step 6: Final answer
    x = 8,811.22

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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.