Home / 15,629.86-21,569.27-8,556.94

Finding the Fourth Proportional to 15,629.86, 21,569.27 and 8,556.94

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Solution

The fourth proportional to 15,629.86, 21,569.27 and 8,556.94 is: 11,808.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.86 : 21,569.27 = 8,556.94 : x
  2. Step 2: Convert to fraction form
    15,629.86/21,569.27 = 8,556.94/x
  3. Step 3: Cross multiply
    15,629.86x = 21,569.27 × 8,556.94
  4. Step 4: Simplify right side
    15,629.86x = 184,566,906.45
  5. Step 5: Solve for x
    x = 184,566,906.45/15,629.86
  6. Step 6: Final answer
    x = 11,808.61

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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.