Home / 8,795.20-13,180.80-5,665.60

Finding the Fourth Proportional to 8,795.20, 13,180.80 and 5,665.60

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Solution

The fourth proportional to 8,795.20, 13,180.80 and 5,665.60 is: 8,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.20 : 13,180.80 = 5,665.60 : x
  2. Step 2: Convert to fraction form
    8,795.20/13,180.80 = 5,665.60/x
  3. Step 3: Cross multiply
    8,795.20x = 13,180.80 × 5,665.60
  4. Step 4: Simplify right side
    8,795.20x = 74,677,140.48
  5. Step 5: Solve for x
    x = 74,677,140.48/8,795.20
  6. Step 6: Final answer
    x = 8,490.67

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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.