Home / 15,323.72-21,144.36-8,608.07

Finding the Fourth Proportional to 15,323.72, 21,144.36 and 8,608.07

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Solution

The fourth proportional to 15,323.72, 21,144.36 and 8,608.07 is: 11,877.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.72 : 21,144.36 = 8,608.07 : x
  2. Step 2: Convert to fraction form
    15,323.72/21,144.36 = 8,608.07/x
  3. Step 3: Cross multiply
    15,323.72x = 21,144.36 × 8,608.07
  4. Step 4: Simplify right side
    15,323.72x = 182,012,025.26
  5. Step 5: Solve for x
    x = 182,012,025.26/15,323.72
  6. Step 6: Final answer
    x = 11,877.79

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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.