Home / 8,890.90-13,331.79-5,200.34

Finding the Fourth Proportional to 8,890.90, 13,331.79 and 5,200.34

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Solution

The fourth proportional to 8,890.90, 13,331.79 and 5,200.34 is: 7,797.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.90 : 13,331.79 = 5,200.34 : x
  2. Step 2: Convert to fraction form
    8,890.90/13,331.79 = 5,200.34/x
  3. Step 3: Cross multiply
    8,890.90x = 13,331.79 × 5,200.34
  4. Step 4: Simplify right side
    8,890.90x = 69,329,840.81
  5. Step 5: Solve for x
    x = 69,329,840.81/8,890.90
  6. Step 6: Final answer
    x = 7,797.84

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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.