Home / 15,324.88-21,147.24-8,610.16

Finding the Fourth Proportional to 15,324.88, 21,147.24 and 8,610.16

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Solution

The fourth proportional to 15,324.88, 21,147.24 and 8,610.16 is: 11,881.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,324.88 : 21,147.24 = 8,610.16 : x
  2. Step 2: Convert to fraction form
    15,324.88/21,147.24 = 8,610.16/x
  3. Step 3: Cross multiply
    15,324.88x = 21,147.24 × 8,610.16
  4. Step 4: Simplify right side
    15,324.88x = 182,081,119.96
  5. Step 5: Solve for x
    x = 182,081,119.96/15,324.88
  6. Step 6: Final answer
    x = 11,881.41

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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.