Home / 12,404.74-18,607.28-3,639.84

Finding the Fourth Proportional to 12,404.74, 18,607.28 and 3,639.84

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Solution

The fourth proportional to 12,404.74, 18,607.28 and 3,639.84 is: 5,459.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,404.74 : 18,607.28 = 3,639.84 : x
  2. Step 2: Convert to fraction form
    12,404.74/18,607.28 = 3,639.84/x
  3. Step 3: Cross multiply
    12,404.74x = 18,607.28 × 3,639.84
  4. Step 4: Simplify right side
    12,404.74x = 67,727,522.04
  5. Step 5: Solve for x
    x = 67,727,522.04/12,404.74
  6. Step 6: Final answer
    x = 5,459.81

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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.