Home / 11,709.90-17,563.70-6,443.17

Finding the Fourth Proportional to 11,709.90, 17,563.70 and 6,443.17

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Solution

The fourth proportional to 11,709.90, 17,563.70 and 6,443.17 is: 9,664.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.90 : 17,563.70 = 6,443.17 : x
  2. Step 2: Convert to fraction form
    11,709.90/17,563.70 = 6,443.17/x
  3. Step 3: Cross multiply
    11,709.90x = 17,563.70 × 6,443.17
  4. Step 4: Simplify right side
    11,709.90x = 113,165,904.93
  5. Step 5: Solve for x
    x = 113,165,904.93/11,709.90
  6. Step 6: Final answer
    x = 9,664.12

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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.