Home / 8,680.91-11,979.52-4,701.99

Finding the Fourth Proportional to 8,680.91, 11,979.52 and 4,701.99

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Solution

The fourth proportional to 8,680.91, 11,979.52 and 4,701.99 is: 6,488.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.91 : 11,979.52 = 4,701.99 : x
  2. Step 2: Convert to fraction form
    8,680.91/11,979.52 = 4,701.99/x
  3. Step 3: Cross multiply
    8,680.91x = 11,979.52 × 4,701.99
  4. Step 4: Simplify right side
    8,680.91x = 56,327,571.49
  5. Step 5: Solve for x
    x = 56,327,571.49/8,680.91
  6. Step 6: Final answer
    x = 6,488.67

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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.