Home / 12,158.00-18,237.15-3,393.60

Finding the Fourth Proportional to 12,158.00, 18,237.15 and 3,393.60

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Solution

The fourth proportional to 12,158.00, 18,237.15 and 3,393.60 is: 5,090.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.00 : 18,237.15 = 3,393.60 : x
  2. Step 2: Convert to fraction form
    12,158.00/18,237.15 = 3,393.60/x
  3. Step 3: Cross multiply
    12,158.00x = 18,237.15 × 3,393.60
  4. Step 4: Simplify right side
    12,158.00x = 61,889,523.85
  5. Step 5: Solve for x
    x = 61,889,523.85/12,158.00
  6. Step 6: Final answer
    x = 5,090.44

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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.