Home / 8,512.56-11,744.10-6,279.75

Finding the Fourth Proportional to 8,512.56, 11,744.10 and 6,279.75

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Solution

The fourth proportional to 8,512.56, 11,744.10 and 6,279.75 is: 8,663.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.56 : 11,744.10 = 6,279.75 : x
  2. Step 2: Convert to fraction form
    8,512.56/11,744.10 = 6,279.75/x
  3. Step 3: Cross multiply
    8,512.56x = 11,744.10 × 6,279.75
  4. Step 4: Simplify right side
    8,512.56x = 73,750,011.98
  5. Step 5: Solve for x
    x = 73,750,011.98/8,512.56
  6. Step 6: Final answer
    x = 8,663.67

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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.