Home / 15,018.42-20,725.90-8,304.26

Finding the Fourth Proportional to 15,018.42, 20,725.90 and 8,304.26

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Solution

The fourth proportional to 15,018.42, 20,725.90 and 8,304.26 is: 11,460.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.42 : 20,725.90 = 8,304.26 : x
  2. Step 2: Convert to fraction form
    15,018.42/20,725.90 = 8,304.26/x
  3. Step 3: Cross multiply
    15,018.42x = 20,725.90 × 8,304.26
  4. Step 4: Simplify right side
    15,018.42x = 172,113,262.33
  5. Step 5: Solve for x
    x = 172,113,262.33/15,018.42
  6. Step 6: Final answer
    x = 11,460.14

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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.