Home / 12,386.93-18,580.37-3,621.83

Finding the Fourth Proportional to 12,386.93, 18,580.37 and 3,621.83

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Solution

The fourth proportional to 12,386.93, 18,580.37 and 3,621.83 is: 5,432.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.93 : 18,580.37 = 3,621.83 : x
  2. Step 2: Convert to fraction form
    12,386.93/18,580.37 = 3,621.83/x
  3. Step 3: Cross multiply
    12,386.93x = 18,580.37 × 3,621.83
  4. Step 4: Simplify right side
    12,386.93x = 67,294,830.47
  5. Step 5: Solve for x
    x = 67,294,830.47/12,386.93
  6. Step 6: Final answer
    x = 5,432.73

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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.