Home / 8,319.69-12,481.91-2,776.67

Finding the Fourth Proportional to 8,319.69, 12,481.91 and 2,776.67

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Solution

The fourth proportional to 8,319.69, 12,481.91 and 2,776.67 is: 4,165.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.69 : 12,481.91 = 2,776.67 : x
  2. Step 2: Convert to fraction form
    8,319.69/12,481.91 = 2,776.67/x
  3. Step 3: Cross multiply
    8,319.69x = 12,481.91 × 2,776.67
  4. Step 4: Simplify right side
    8,319.69x = 34,658,068.75
  5. Step 5: Solve for x
    x = 34,658,068.75/8,319.69
  6. Step 6: Final answer
    x = 4,165.79

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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.