Home / 15,864.54-21,893.43-8,791.26

Finding the Fourth Proportional to 15,864.54, 21,893.43 and 8,791.26

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Solution

The fourth proportional to 15,864.54, 21,893.43 and 8,791.26 is: 12,132.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,864.54 : 21,893.43 = 8,791.26 : x
  2. Step 2: Convert to fraction form
    15,864.54/21,893.43 = 8,791.26/x
  3. Step 3: Cross multiply
    15,864.54x = 21,893.43 × 8,791.26
  4. Step 4: Simplify right side
    15,864.54x = 192,470,835.42
  5. Step 5: Solve for x
    x = 192,470,835.42/15,864.54
  6. Step 6: Final answer
    x = 12,132.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.