Home / 12,891.63-19,336.20-4,124.19

Finding the Fourth Proportional to 12,891.63, 19,336.20 and 4,124.19

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Solution

The fourth proportional to 12,891.63, 19,336.20 and 4,124.19 is: 6,185.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,891.63 : 19,336.20 = 4,124.19 : x
  2. Step 2: Convert to fraction form
    12,891.63/19,336.20 = 4,124.19/x
  3. Step 3: Cross multiply
    12,891.63x = 19,336.20 × 4,124.19
  4. Step 4: Simplify right side
    12,891.63x = 79,746,162.68
  5. Step 5: Solve for x
    x = 79,746,162.68/12,891.63
  6. Step 6: Final answer
    x = 6,185.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.