Home / 8,126.05-12,190.56-2,580.79

Finding the Fourth Proportional to 8,126.05, 12,190.56 and 2,580.79

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Solution

The fourth proportional to 8,126.05, 12,190.56 and 2,580.79 is: 3,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.05 : 12,190.56 = 2,580.79 : x
  2. Step 2: Convert to fraction form
    8,126.05/12,190.56 = 2,580.79/x
  3. Step 3: Cross multiply
    8,126.05x = 12,190.56 × 2,580.79
  4. Step 4: Simplify right side
    8,126.05x = 31,461,275.34
  5. Step 5: Solve for x
    x = 31,461,275.34/8,126.05
  6. Step 6: Final answer
    x = 3,871.66

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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.