Home / 8,126.74-12,191.93-2,580.42

Finding the Fourth Proportional to 8,126.74, 12,191.93 and 2,580.42

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Solution

The fourth proportional to 8,126.74, 12,191.93 and 2,580.42 is: 3,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.74 : 12,191.93 = 2,580.42 : x
  2. Step 2: Convert to fraction form
    8,126.74/12,191.93 = 2,580.42/x
  3. Step 3: Cross multiply
    8,126.74x = 12,191.93 × 2,580.42
  4. Step 4: Simplify right side
    8,126.74x = 31,460,300.01
  5. Step 5: Solve for x
    x = 31,460,300.01/8,126.74
  6. Step 6: Final answer
    x = 3,871.21

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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.