Home / 15,017.21-20,725.27-8,644.06

Finding the Fourth Proportional to 15,017.21, 20,725.27 and 8,644.06

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Solution

The fourth proportional to 15,017.21, 20,725.27 and 8,644.06 is: 11,929.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.21 : 20,725.27 = 8,644.06 : x
  2. Step 2: Convert to fraction form
    15,017.21/20,725.27 = 8,644.06/x
  3. Step 3: Cross multiply
    15,017.21x = 20,725.27 × 8,644.06
  4. Step 4: Simplify right side
    15,017.21x = 179,150,481.69
  5. Step 5: Solve for x
    x = 179,150,481.69/15,017.21
  6. Step 6: Final answer
    x = 11,929.68

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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.