Home / 14,975.75-20,667.05-8,261.66

Finding the Fourth Proportional to 14,975.75, 20,667.05 and 8,261.66

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Solution

The fourth proportional to 14,975.75, 20,667.05 and 8,261.66 is: 11,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.75 : 20,667.05 = 8,261.66 : x
  2. Step 2: Convert to fraction form
    14,975.75/20,667.05 = 8,261.66/x
  3. Step 3: Cross multiply
    14,975.75x = 20,667.05 × 8,261.66
  4. Step 4: Simplify right side
    14,975.75x = 170,744,181.64
  5. Step 5: Solve for x
    x = 170,744,181.64/14,975.75
  6. Step 6: Final answer
    x = 11,401.38

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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.