Home / 12,356.46-18,537.60-3,591.12

Finding the Fourth Proportional to 12,356.46, 18,537.60 and 3,591.12

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Solution

The fourth proportional to 12,356.46, 18,537.60 and 3,591.12 is: 5,387.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.46 : 18,537.60 = 3,591.12 : x
  2. Step 2: Convert to fraction form
    12,356.46/18,537.60 = 3,591.12/x
  3. Step 3: Cross multiply
    12,356.46x = 18,537.60 × 3,591.12
  4. Step 4: Simplify right side
    12,356.46x = 66,570,746.11
  5. Step 5: Solve for x
    x = 66,570,746.11/12,356.46
  6. Step 6: Final answer
    x = 5,387.53

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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.