Home / 9,905.40-14,847.80-3,329.35

Finding the Fourth Proportional to 9,905.40, 14,847.80 and 3,329.35

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Solution

The fourth proportional to 9,905.40, 14,847.80 and 3,329.35 is: 4,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.40 : 14,847.80 = 3,329.35 : x
  2. Step 2: Convert to fraction form
    9,905.40/14,847.80 = 3,329.35/x
  3. Step 3: Cross multiply
    9,905.40x = 14,847.80 × 3,329.35
  4. Step 4: Simplify right side
    9,905.40x = 49,433,522.93
  5. Step 5: Solve for x
    x = 49,433,522.93/9,905.40
  6. Step 6: Final answer
    x = 4,990.56

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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.