Home / 11,680.41-16,118.28-6,643.92

Finding the Fourth Proportional to 11,680.41, 16,118.28 and 6,643.92

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Solution

The fourth proportional to 11,680.41, 16,118.28 and 6,643.92 is: 9,168.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.41 : 16,118.28 = 6,643.92 : x
  2. Step 2: Convert to fraction form
    11,680.41/16,118.28 = 6,643.92/x
  3. Step 3: Cross multiply
    11,680.41x = 16,118.28 × 6,643.92
  4. Step 4: Simplify right side
    11,680.41x = 107,088,562.86
  5. Step 5: Solve for x
    x = 107,088,562.86/11,680.41
  6. Step 6: Final answer
    x = 9,168.22

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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.