Home / 8,071.48-12,108.38-3,908.07

Finding the Fourth Proportional to 8,071.48, 12,108.38 and 3,908.07

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Solution

The fourth proportional to 8,071.48, 12,108.38 and 3,908.07 is: 5,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.48 : 12,108.38 = 3,908.07 : x
  2. Step 2: Convert to fraction form
    8,071.48/12,108.38 = 3,908.07/x
  3. Step 3: Cross multiply
    8,071.48x = 12,108.38 × 3,908.07
  4. Step 4: Simplify right side
    8,071.48x = 47,320,396.63
  5. Step 5: Solve for x
    x = 47,320,396.63/8,071.48
  6. Step 6: Final answer
    x = 5,862.67

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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.