Home / 15,018.75-20,727.09-8,732.34

Finding the Fourth Proportional to 15,018.75, 20,727.09 and 8,732.34

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Solution

The fourth proportional to 15,018.75, 20,727.09 and 8,732.34 is: 12,051.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.75 : 20,727.09 = 8,732.34 : x
  2. Step 2: Convert to fraction form
    15,018.75/20,727.09 = 8,732.34/x
  3. Step 3: Cross multiply
    15,018.75x = 20,727.09 × 8,732.34
  4. Step 4: Simplify right side
    15,018.75x = 180,995,997.09
  5. Step 5: Solve for x
    x = 180,995,997.09/15,018.75
  6. Step 6: Final answer
    x = 12,051.34

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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.