Home / 8,013.03-12,013.88-3,078.51

Finding the Fourth Proportional to 8,013.03, 12,013.88 and 3,078.51

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Solution

The fourth proportional to 8,013.03, 12,013.88 and 3,078.51 is: 4,615.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.03 : 12,013.88 = 3,078.51 : x
  2. Step 2: Convert to fraction form
    8,013.03/12,013.88 = 3,078.51/x
  3. Step 3: Cross multiply
    8,013.03x = 12,013.88 × 3,078.51
  4. Step 4: Simplify right side
    8,013.03x = 36,984,834.33
  5. Step 5: Solve for x
    x = 36,984,834.33/8,013.03
  6. Step 6: Final answer
    x = 4,615.59

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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.