Home / 8,140.77-12,208.32-3,460.59

Finding the Fourth Proportional to 8,140.77, 12,208.32 and 3,460.59

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Solution

The fourth proportional to 8,140.77, 12,208.32 and 3,460.59 is: 5,189.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.77 : 12,208.32 = 3,460.59 : x
  2. Step 2: Convert to fraction form
    8,140.77/12,208.32 = 3,460.59/x
  3. Step 3: Cross multiply
    8,140.77x = 12,208.32 × 3,460.59
  4. Step 4: Simplify right side
    8,140.77x = 42,247,990.11
  5. Step 5: Solve for x
    x = 42,247,990.11/8,140.77
  6. Step 6: Final answer
    x = 5,189.68

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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.