Home / 12,685.69-19,026.46-4,255.92

Finding the Fourth Proportional to 12,685.69, 19,026.46 and 4,255.92

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Solution

The fourth proportional to 12,685.69, 19,026.46 and 4,255.92 is: 6,383.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.69 : 19,026.46 = 4,255.92 : x
  2. Step 2: Convert to fraction form
    12,685.69/19,026.46 = 4,255.92/x
  3. Step 3: Cross multiply
    12,685.69x = 19,026.46 × 4,255.92
  4. Step 4: Simplify right side
    12,685.69x = 80,975,162.44
  5. Step 5: Solve for x
    x = 80,975,162.44/12,685.69
  6. Step 6: Final answer
    x = 6,383.19

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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.