Home / 12,174.36-18,261.12-5,152.44

Finding the Fourth Proportional to 12,174.36, 18,261.12 and 5,152.44

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Solution

The fourth proportional to 12,174.36, 18,261.12 and 5,152.44 is: 7,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.36 : 18,261.12 = 5,152.44 : x
  2. Step 2: Convert to fraction form
    12,174.36/18,261.12 = 5,152.44/x
  3. Step 3: Cross multiply
    12,174.36x = 18,261.12 × 5,152.44
  4. Step 4: Simplify right side
    12,174.36x = 94,089,325.13
  5. Step 5: Solve for x
    x = 94,089,325.13/12,174.36
  6. Step 6: Final answer
    x = 7,728.48

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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.