Home / 8,142.30-11,238.59-4,786.19

Finding the Fourth Proportional to 8,142.30, 11,238.59 and 4,786.19

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Solution

The fourth proportional to 8,142.30, 11,238.59 and 4,786.19 is: 6,606.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.30 : 11,238.59 = 4,786.19 : x
  2. Step 2: Convert to fraction form
    8,142.30/11,238.59 = 4,786.19/x
  3. Step 3: Cross multiply
    8,142.30x = 11,238.59 × 4,786.19
  4. Step 4: Simplify right side
    8,142.30x = 53,790,027.07
  5. Step 5: Solve for x
    x = 53,790,027.07/8,142.30
  6. Step 6: Final answer
    x = 6,606.24

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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.