Home / 11,684.13-16,124.16-6,378.90

Finding the Fourth Proportional to 11,684.13, 16,124.16 and 6,378.90

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Solution

The fourth proportional to 11,684.13, 16,124.16 and 6,378.90 is: 8,802.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.13 : 16,124.16 = 6,378.90 : x
  2. Step 2: Convert to fraction form
    11,684.13/16,124.16 = 6,378.90/x
  3. Step 3: Cross multiply
    11,684.13x = 16,124.16 × 6,378.90
  4. Step 4: Simplify right side
    11,684.13x = 102,854,404.22
  5. Step 5: Solve for x
    x = 102,854,404.22/11,684.13
  6. Step 6: Final answer
    x = 8,802.92

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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.