Home / 8,930.61-13,390.01-3,993.45

Finding the Fourth Proportional to 8,930.61, 13,390.01 and 3,993.45

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Solution

The fourth proportional to 8,930.61, 13,390.01 and 3,993.45 is: 5,987.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.61 : 13,390.01 = 3,993.45 : x
  2. Step 2: Convert to fraction form
    8,930.61/13,390.01 = 3,993.45/x
  3. Step 3: Cross multiply
    8,930.61x = 13,390.01 × 3,993.45
  4. Step 4: Simplify right side
    8,930.61x = 53,472,315.47
  5. Step 5: Solve for x
    x = 53,472,315.47/8,930.61
  6. Step 6: Final answer
    x = 5,987.53

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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.