Home / 13,554.39-20,330.94-5,653.65

Finding the Fourth Proportional to 13,554.39, 20,330.94 and 5,653.65

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Solution

The fourth proportional to 13,554.39, 20,330.94 and 5,653.65 is: 8,480.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,554.39 : 20,330.94 = 5,653.65 : x
  2. Step 2: Convert to fraction form
    13,554.39/20,330.94 = 5,653.65/x
  3. Step 3: Cross multiply
    13,554.39x = 20,330.94 × 5,653.65
  4. Step 4: Simplify right side
    13,554.39x = 114,944,018.93
  5. Step 5: Solve for x
    x = 114,944,018.93/13,554.39
  6. Step 6: Final answer
    x = 8,480.21

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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.