Home / 13,369.54-20,090.65-7,133.95

Finding the Fourth Proportional to 13,369.54, 20,090.65 and 7,133.95

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Solution

The fourth proportional to 13,369.54, 20,090.65 and 7,133.95 is: 10,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.54 : 20,090.65 = 7,133.95 : x
  2. Step 2: Convert to fraction form
    13,369.54/20,090.65 = 7,133.95/x
  3. Step 3: Cross multiply
    13,369.54x = 20,090.65 × 7,133.95
  4. Step 4: Simplify right side
    13,369.54x = 143,325,692.57
  5. Step 5: Solve for x
    x = 143,325,692.57/13,369.54
  6. Step 6: Final answer
    x = 10,720.32

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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.