Home / 8,749.76-13,110.06-6,280.88

Finding the Fourth Proportional to 8,749.76, 13,110.06 and 6,280.88

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Solution

The fourth proportional to 8,749.76, 13,110.06 and 6,280.88 is: 9,410.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.76 : 13,110.06 = 6,280.88 : x
  2. Step 2: Convert to fraction form
    8,749.76/13,110.06 = 6,280.88/x
  3. Step 3: Cross multiply
    8,749.76x = 13,110.06 × 6,280.88
  4. Step 4: Simplify right side
    8,749.76x = 82,342,713.65
  5. Step 5: Solve for x
    x = 82,342,713.65/8,749.76
  6. Step 6: Final answer
    x = 9,410.85

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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.