Home / 13,590.57-20,369.34-9,883.56

Finding the Fourth Proportional to 13,590.57, 20,369.34 and 9,883.56

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Solution

The fourth proportional to 13,590.57, 20,369.34 and 9,883.56 is: 14,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.57 : 20,369.34 = 9,883.56 : x
  2. Step 2: Convert to fraction form
    13,590.57/20,369.34 = 9,883.56/x
  3. Step 3: Cross multiply
    13,590.57x = 20,369.34 × 9,883.56
  4. Step 4: Simplify right side
    13,590.57x = 201,321,594.05
  5. Step 5: Solve for x
    x = 201,321,594.05/13,590.57
  6. Step 6: Final answer
    x = 14,813.33

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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.