Home / 8,126.96-12,191.06-2,580.62

Finding the Fourth Proportional to 8,126.96, 12,191.06 and 2,580.62

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Solution

The fourth proportional to 8,126.96, 12,191.06 and 2,580.62 is: 3,871.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.96 : 12,191.06 = 2,580.62 : x
  2. Step 2: Convert to fraction form
    8,126.96/12,191.06 = 2,580.62/x
  3. Step 3: Cross multiply
    8,126.96x = 12,191.06 × 2,580.62
  4. Step 4: Simplify right side
    8,126.96x = 31,460,438.75
  5. Step 5: Solve for x
    x = 31,460,438.75/8,126.96
  6. Step 6: Final answer
    x = 3,871.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.