Home / 12,365.52-18,548.32-3,131.52

Finding the Fourth Proportional to 12,365.52, 18,548.32 and 3,131.52

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Solution

The fourth proportional to 12,365.52, 18,548.32 and 3,131.52 is: 4,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.52 : 18,548.32 = 3,131.52 : x
  2. Step 2: Convert to fraction form
    12,365.52/18,548.32 = 3,131.52/x
  3. Step 3: Cross multiply
    12,365.52x = 18,548.32 × 3,131.52
  4. Step 4: Simplify right side
    12,365.52x = 58,084,435.05
  5. Step 5: Solve for x
    x = 58,084,435.05/12,365.52
  6. Step 6: Final answer
    x = 4,697.29

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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.