Home / 11,689.18-16,130.36-6,382.92

Finding the Fourth Proportional to 11,689.18, 16,130.36 and 6,382.92

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Solution

The fourth proportional to 11,689.18, 16,130.36 and 6,382.92 is: 8,808.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.18 : 16,130.36 = 6,382.92 : x
  2. Step 2: Convert to fraction form
    11,689.18/16,130.36 = 6,382.92/x
  3. Step 3: Cross multiply
    11,689.18x = 16,130.36 × 6,382.92
  4. Step 4: Simplify right side
    11,689.18x = 102,958,797.45
  5. Step 5: Solve for x
    x = 102,958,797.45/11,689.18
  6. Step 6: Final answer
    x = 8,808.04

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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.