Home / 8,390.54-12,583.87-3,708

Finding the Fourth Proportional to 8,390.54, 12,583.87 and 3,708

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Solution

The fourth proportional to 8,390.54, 12,583.87 and 3,708 is: 5,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.54 : 12,583.87 = 3,708 : x
  2. Step 2: Convert to fraction form
    8,390.54/12,583.87 = 3,708/x
  3. Step 3: Cross multiply
    8,390.54x = 12,583.87 × 3,708
  4. Step 4: Simplify right side
    8,390.54x = 46,660,989.96
  5. Step 5: Solve for x
    x = 46,660,989.96/8,390.54
  6. Step 6: Final answer
    x = 5,561.14

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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.