Home / 8,819.93-12,171.47-4,786.67

Finding the Fourth Proportional to 8,819.93, 12,171.47 and 4,786.67

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Solution

The fourth proportional to 8,819.93, 12,171.47 and 4,786.67 is: 6,605.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.93 : 12,171.47 = 4,786.67 : x
  2. Step 2: Convert to fraction form
    8,819.93/12,171.47 = 4,786.67/x
  3. Step 3: Cross multiply
    8,819.93x = 12,171.47 × 4,786.67
  4. Step 4: Simplify right side
    8,819.93x = 58,260,816.80
  5. Step 5: Solve for x
    x = 58,260,816.80/8,819.93
  6. Step 6: Final answer
    x = 6,605.59

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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.