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Finding the Fourth Proportional to 13,452.80, 20,186.40 and 6,058.40

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Solution

The fourth proportional to 13,452.80, 20,186.40 and 6,058.40 is: 9,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.80 : 20,186.40 = 6,058.40 : x
  2. Step 2: Convert to fraction form
    13,452.80/20,186.40 = 6,058.40/x
  3. Step 3: Cross multiply
    13,452.80x = 20,186.40 × 6,058.40
  4. Step 4: Simplify right side
    13,452.80x = 122,297,285.76
  5. Step 5: Solve for x
    x = 122,297,285.76/13,452.80
  6. Step 6: Final answer
    x = 9,090.84

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1.5x scale

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.