Home / 14,436.68-19,920.18-8,149.64

Finding the Fourth Proportional to 14,436.68, 19,920.18 and 8,149.64

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Solution

The fourth proportional to 14,436.68, 19,920.18 and 8,149.64 is: 11,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,436.68 : 19,920.18 = 8,149.64 : x
  2. Step 2: Convert to fraction form
    14,436.68/19,920.18 = 8,149.64/x
  3. Step 3: Cross multiply
    14,436.68x = 19,920.18 × 8,149.64
  4. Step 4: Simplify right side
    14,436.68x = 162,342,295.74
  5. Step 5: Solve for x
    x = 162,342,295.74/14,436.68
  6. Step 6: Final answer
    x = 11,245.13

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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.