Home / 15,323.83-21,145.58-8,608.93

Finding the Fourth Proportional to 15,323.83, 21,145.58 and 8,608.93

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Solution

The fourth proportional to 15,323.83, 21,145.58 and 8,608.93 is: 11,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.83 : 21,145.58 = 8,608.93 : x
  2. Step 2: Convert to fraction form
    15,323.83/21,145.58 = 8,608.93/x
  3. Step 3: Cross multiply
    15,323.83x = 21,145.58 × 8,608.93
  4. Step 4: Simplify right side
    15,323.83x = 182,040,712.30
  5. Step 5: Solve for x
    x = 182,040,712.30/15,323.83
  6. Step 6: Final answer
    x = 11,879.59

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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.