Home / 8,288.87-11,425.66-5,631.67

Finding the Fourth Proportional to 8,288.87, 11,425.66 and 5,631.67

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Solution

The fourth proportional to 8,288.87, 11,425.66 and 5,631.67 is: 7,762.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.87 : 11,425.66 = 5,631.67 : x
  2. Step 2: Convert to fraction form
    8,288.87/11,425.66 = 5,631.67/x
  3. Step 3: Cross multiply
    8,288.87x = 11,425.66 × 5,631.67
  4. Step 4: Simplify right side
    8,288.87x = 64,345,546.65
  5. Step 5: Solve for x
    x = 64,345,546.65/8,288.87
  6. Step 6: Final answer
    x = 7,762.89

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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.