Home / 15,821.90-23,689.62-11,384.00

Finding the Fourth Proportional to 15,821.90, 23,689.62 and 11,384.00

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Solution

The fourth proportional to 15,821.90, 23,689.62 and 11,384.00 is: 17,044.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.90 : 23,689.62 = 11,384.00 : x
  2. Step 2: Convert to fraction form
    15,821.90/23,689.62 = 11,384.00/x
  3. Step 3: Cross multiply
    15,821.90x = 23,689.62 × 11,384.00
  4. Step 4: Simplify right side
    15,821.90x = 269,682,561.78
  5. Step 5: Solve for x
    x = 269,682,561.78/15,821.90
  6. Step 6: Final answer
    x = 17,044.89

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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.