Home / 15,525.78-21,425.62-8,452.22

Finding the Fourth Proportional to 15,525.78, 21,425.62 and 8,452.22

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Solution

The fourth proportional to 15,525.78, 21,425.62 and 8,452.22 is: 11,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.78 : 21,425.62 = 8,452.22 : x
  2. Step 2: Convert to fraction form
    15,525.78/21,425.62 = 8,452.22/x
  3. Step 3: Cross multiply
    15,525.78x = 21,425.62 × 8,452.22
  4. Step 4: Simplify right side
    15,525.78x = 181,094,053.88
  5. Step 5: Solve for x
    x = 181,094,053.88/15,525.78
  6. Step 6: Final answer
    x = 11,664.09

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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.