Home / 18,933.48-28,399.14-5,785.56

Finding the Fourth Proportional to 18,933.48, 28,399.14 and 5,785.56

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Solution

The fourth proportional to 18,933.48, 28,399.14 and 5,785.56 is: 8,678.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.48 : 28,399.14 = 5,785.56 : x
  2. Step 2: Convert to fraction form
    18,933.48/28,399.14 = 5,785.56/x
  3. Step 3: Cross multiply
    18,933.48x = 28,399.14 × 5,785.56
  4. Step 4: Simplify right side
    18,933.48x = 164,304,928.42
  5. Step 5: Solve for x
    x = 164,304,928.42/18,933.48
  6. Step 6: Final answer
    x = 8,678.01

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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.