Home / 11,450.70-15,809.58-8,793.36

Finding the Fourth Proportional to 11,450.70, 15,809.58 and 8,793.36

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Solution

The fourth proportional to 11,450.70, 15,809.58 and 8,793.36 is: 12,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,450.70 : 15,809.58 = 8,793.36 : x
  2. Step 2: Convert to fraction form
    11,450.70/15,809.58 = 8,793.36/x
  3. Step 3: Cross multiply
    11,450.70x = 15,809.58 × 8,793.36
  4. Step 4: Simplify right side
    11,450.70x = 139,019,328.39
  5. Step 5: Solve for x
    x = 139,019,328.39/11,450.70
  6. Step 6: Final answer
    x = 12,140.68

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Double scale
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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.