Home / 13,239.48-18,268.32-7,573.31

Finding the Fourth Proportional to 13,239.48, 18,268.32 and 7,573.31

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Solution

The fourth proportional to 13,239.48, 18,268.32 and 7,573.31 is: 10,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.48 : 18,268.32 = 7,573.31 : x
  2. Step 2: Convert to fraction form
    13,239.48/18,268.32 = 7,573.31/x
  3. Step 3: Cross multiply
    13,239.48x = 18,268.32 × 7,573.31
  4. Step 4: Simplify right side
    13,239.48x = 138,351,650.54
  5. Step 5: Solve for x
    x = 138,351,650.54/13,239.48
  6. Step 6: Final answer
    x = 10,449.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.