Home / 13,239.46-18,268.28-7,573.28

Finding the Fourth Proportional to 13,239.46, 18,268.28 and 7,573.28

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Solution

The fourth proportional to 13,239.46, 18,268.28 and 7,573.28 is: 10,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.46 : 18,268.28 = 7,573.28 : x
  2. Step 2: Convert to fraction form
    13,239.46/18,268.28 = 7,573.28/x
  3. Step 3: Cross multiply
    13,239.46x = 18,268.28 × 7,573.28
  4. Step 4: Simplify right side
    13,239.46x = 138,350,799.56
  5. Step 5: Solve for x
    x = 138,350,799.56/13,239.46
  6. Step 6: Final answer
    x = 10,449.88

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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.