Home / 12,404.58-18,606.51-3,639.66

Finding the Fourth Proportional to 12,404.58, 18,606.51 and 3,639.66

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Solution

The fourth proportional to 12,404.58, 18,606.51 and 3,639.66 is: 5,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.58 : 18,606.51 = 3,639.66 : x
  2. Step 2: Convert to fraction form
    12,404.58/18,606.51 = 3,639.66/x
  3. Step 3: Cross multiply
    12,404.58x = 18,606.51 × 3,639.66
  4. Step 4: Simplify right side
    12,404.58x = 67,721,370.19
  5. Step 5: Solve for x
    x = 67,721,370.19/12,404.58
  6. Step 6: Final answer
    x = 5,459.38

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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.