Home / 8,239.23-12,359.16-4,235.55

Finding the Fourth Proportional to 8,239.23, 12,359.16 and 4,235.55

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Solution

The fourth proportional to 8,239.23, 12,359.16 and 4,235.55 is: 6,353.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.23 : 12,359.16 = 4,235.55 : x
  2. Step 2: Convert to fraction form
    8,239.23/12,359.16 = 4,235.55/x
  3. Step 3: Cross multiply
    8,239.23x = 12,359.16 × 4,235.55
  4. Step 4: Simplify right side
    8,239.23x = 52,347,761.87
  5. Step 5: Solve for x
    x = 52,347,761.87/8,239.23
  6. Step 6: Final answer
    x = 6,353.47

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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.