Home / 8,117.95-12,175.86-2,571.34

Finding the Fourth Proportional to 8,117.95, 12,175.86 and 2,571.34

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Solution

The fourth proportional to 8,117.95, 12,175.86 and 2,571.34 is: 3,856.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.95 : 12,175.86 = 2,571.34 : x
  2. Step 2: Convert to fraction form
    8,117.95/12,175.86 = 2,571.34/x
  3. Step 3: Cross multiply
    8,117.95x = 12,175.86 × 2,571.34
  4. Step 4: Simplify right side
    8,117.95x = 31,308,275.85
  5. Step 5: Solve for x
    x = 31,308,275.85/8,117.95
  6. Step 6: Final answer
    x = 3,856.67

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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.