Home / 13,185.62-19,783.62-5,784.92

Finding the Fourth Proportional to 13,185.62, 19,783.62 and 5,784.92

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Solution

The fourth proportional to 13,185.62, 19,783.62 and 5,784.92 is: 8,679.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.62 : 19,783.62 = 5,784.92 : x
  2. Step 2: Convert to fraction form
    13,185.62/19,783.62 = 5,784.92/x
  3. Step 3: Cross multiply
    13,185.62x = 19,783.62 × 5,784.92
  4. Step 4: Simplify right side
    13,185.62x = 114,446,659.01
  5. Step 5: Solve for x
    x = 114,446,659.01/13,185.62
  6. Step 6: Final answer
    x = 8,679.66

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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.