Home / 8,390.60-11,579.67-5,033.54

Finding the Fourth Proportional to 8,390.60, 11,579.67 and 5,033.54

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Solution

The fourth proportional to 8,390.60, 11,579.67 and 5,033.54 is: 6,946.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.60 : 11,579.67 = 5,033.54 : x
  2. Step 2: Convert to fraction form
    8,390.60/11,579.67 = 5,033.54/x
  3. Step 3: Cross multiply
    8,390.60x = 11,579.67 × 5,033.54
  4. Step 4: Simplify right side
    8,390.60x = 58,286,732.13
  5. Step 5: Solve for x
    x = 58,286,732.13/8,390.60
  6. Step 6: Final answer
    x = 6,946.67

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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.