Home / 11,689.06-16,130.31-6,382.86

Finding the Fourth Proportional to 11,689.06, 16,130.31 and 6,382.86

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Solution

The fourth proportional to 11,689.06, 16,130.31 and 6,382.86 is: 8,808.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.06 : 16,130.31 = 6,382.86 : x
  2. Step 2: Convert to fraction form
    11,689.06/16,130.31 = 6,382.86/x
  3. Step 3: Cross multiply
    11,689.06x = 16,130.31 × 6,382.86
  4. Step 4: Simplify right side
    11,689.06x = 102,957,510.49
  5. Step 5: Solve for x
    x = 102,957,510.49/11,689.06
  6. Step 6: Final answer
    x = 8,808.02

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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.