Home / 12,590-18,885.04-3,824.72

Finding the Fourth Proportional to 12,590, 18,885.04 and 3,824.72

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Solution

The fourth proportional to 12,590, 18,885.04 and 3,824.72 is: 5,737.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590 : 18,885.04 = 3,824.72 : x
  2. Step 2: Convert to fraction form
    12,590/18,885.04 = 3,824.72/x
  3. Step 3: Cross multiply
    12,590x = 18,885.04 × 3,824.72
  4. Step 4: Simplify right side
    12,590x = 72,229,990.19
  5. Step 5: Solve for x
    x = 72,229,990.19/12,590
  6. Step 6: Final answer
    x = 5,737.09

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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.