Home / 8,124.36-12,186.09-2,859.63

Finding the Fourth Proportional to 8,124.36, 12,186.09 and 2,859.63

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Solution

The fourth proportional to 8,124.36, 12,186.09 and 2,859.63 is: 4,289.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.36 : 12,186.09 = 2,859.63 : x
  2. Step 2: Convert to fraction form
    8,124.36/12,186.09 = 2,859.63/x
  3. Step 3: Cross multiply
    8,124.36x = 12,186.09 × 2,859.63
  4. Step 4: Simplify right side
    8,124.36x = 34,847,708.55
  5. Step 5: Solve for x
    x = 34,847,708.55/8,124.36
  6. Step 6: Final answer
    x = 4,289.29

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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.