Home / 9,815.30-14,720.86-3,239.94

Finding the Fourth Proportional to 9,815.30, 14,720.86 and 3,239.94

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Solution

The fourth proportional to 9,815.30, 14,720.86 and 3,239.94 is: 4,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.30 : 14,720.86 = 3,239.94 : x
  2. Step 2: Convert to fraction form
    9,815.30/14,720.86 = 3,239.94/x
  3. Step 3: Cross multiply
    9,815.30x = 14,720.86 × 3,239.94
  4. Step 4: Simplify right side
    9,815.30x = 47,694,703.15
  5. Step 5: Solve for x
    x = 47,694,703.15/9,815.30
  6. Step 6: Final answer
    x = 4,859.22

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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.