Home / 14,905.88-20,579.15-9,874.42

Finding the Fourth Proportional to 14,905.88, 20,579.15 and 9,874.42

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Solution

The fourth proportional to 14,905.88, 20,579.15 and 9,874.42 is: 13,632.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.88 : 20,579.15 = 9,874.42 : x
  2. Step 2: Convert to fraction form
    14,905.88/20,579.15 = 9,874.42/x
  3. Step 3: Cross multiply
    14,905.88x = 20,579.15 × 9,874.42
  4. Step 4: Simplify right side
    14,905.88x = 203,207,170.34
  5. Step 5: Solve for x
    x = 203,207,170.34/14,905.88
  6. Step 6: Final answer
    x = 13,632.69

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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.