Home / 11,727.39-16,184.10-6,422.21

Finding the Fourth Proportional to 11,727.39, 16,184.10 and 6,422.21

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Solution

The fourth proportional to 11,727.39, 16,184.10 and 6,422.21 is: 8,862.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.39 : 16,184.10 = 6,422.21 : x
  2. Step 2: Convert to fraction form
    11,727.39/16,184.10 = 6,422.21/x
  3. Step 3: Cross multiply
    11,727.39x = 16,184.10 × 6,422.21
  4. Step 4: Simplify right side
    11,727.39x = 103,937,688.86
  5. Step 5: Solve for x
    x = 103,937,688.86/11,727.39
  6. Step 6: Final answer
    x = 8,862.82

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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.