Home / 11,717.16-16,169.31-6,411.63

Finding the Fourth Proportional to 11,717.16, 16,169.31 and 6,411.63

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Solution

The fourth proportional to 11,717.16, 16,169.31 and 6,411.63 is: 8,847.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,717.16 : 16,169.31 = 6,411.63 : x
  2. Step 2: Convert to fraction form
    11,717.16/16,169.31 = 6,411.63/x
  3. Step 3: Cross multiply
    11,717.16x = 16,169.31 × 6,411.63
  4. Step 4: Simplify right side
    11,717.16x = 103,671,633.08
  5. Step 5: Solve for x
    x = 103,671,633.08/11,717.16
  6. Step 6: Final answer
    x = 8,847.85

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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.