Home / 8,071.99-12,112.13-3,331.66

Finding the Fourth Proportional to 8,071.99, 12,112.13 and 3,331.66

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Solution

The fourth proportional to 8,071.99, 12,112.13 and 3,331.66 is: 4,999.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.99 : 12,112.13 = 3,331.66 : x
  2. Step 2: Convert to fraction form
    8,071.99/12,112.13 = 3,331.66/x
  3. Step 3: Cross multiply
    8,071.99x = 12,112.13 × 3,331.66
  4. Step 4: Simplify right side
    8,071.99x = 40,353,499.04
  5. Step 5: Solve for x
    x = 40,353,499.04/8,071.99
  6. Step 6: Final answer
    x = 4,999.20

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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.