Home / 11,723.49-16,179.95-6,686.55

Finding the Fourth Proportional to 11,723.49, 16,179.95 and 6,686.55

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Solution

The fourth proportional to 11,723.49, 16,179.95 and 6,686.55 is: 9,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.49 : 16,179.95 = 6,686.55 : x
  2. Step 2: Convert to fraction form
    11,723.49/16,179.95 = 6,686.55/x
  3. Step 3: Cross multiply
    11,723.49x = 16,179.95 × 6,686.55
  4. Step 4: Simplify right side
    11,723.49x = 108,188,074.74
  5. Step 5: Solve for x
    x = 108,188,074.74/11,723.49
  6. Step 6: Final answer
    x = 9,228.32

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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.