Home / 8,312.37-12,468.44-2,389.39

Finding the Fourth Proportional to 8,312.37, 12,468.44 and 2,389.39

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Solution

The fourth proportional to 8,312.37, 12,468.44 and 2,389.39 is: 3,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.37 : 12,468.44 = 2,389.39 : x
  2. Step 2: Convert to fraction form
    8,312.37/12,468.44 = 2,389.39/x
  3. Step 3: Cross multiply
    8,312.37x = 12,468.44 × 2,389.39
  4. Step 4: Simplify right side
    8,312.37x = 29,791,965.85
  5. Step 5: Solve for x
    x = 29,791,965.85/8,312.37
  6. Step 6: Final answer
    x = 3,584.05

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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.