Home / 8,167.18-12,239.42-4,263.80

Finding the Fourth Proportional to 8,167.18, 12,239.42 and 4,263.80

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Solution

The fourth proportional to 8,167.18, 12,239.42 and 4,263.80 is: 6,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.18 : 12,239.42 = 4,263.80 : x
  2. Step 2: Convert to fraction form
    8,167.18/12,239.42 = 4,263.80/x
  3. Step 3: Cross multiply
    8,167.18x = 12,239.42 × 4,263.80
  4. Step 4: Simplify right side
    8,167.18x = 52,186,439.00
  5. Step 5: Solve for x
    x = 52,186,439.00/8,167.18
  6. Step 6: Final answer
    x = 6,389.77

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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.