Home / 18,474.28-25,489.81-11,301.58

Finding the Fourth Proportional to 18,474.28, 25,489.81 and 11,301.58

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Solution

The fourth proportional to 18,474.28, 25,489.81 and 11,301.58 is: 15,593.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.28 : 25,489.81 = 11,301.58 : x
  2. Step 2: Convert to fraction form
    18,474.28/25,489.81 = 11,301.58/x
  3. Step 3: Cross multiply
    18,474.28x = 25,489.81 × 11,301.58
  4. Step 4: Simplify right side
    18,474.28x = 288,075,172.89
  5. Step 5: Solve for x
    x = 288,075,172.89/18,474.28
  6. Step 6: Final answer
    x = 15,593.31

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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.