Home / 7,857.30-10,843.26-4,272.47

Finding the Fourth Proportional to 7,857.30, 10,843.26 and 4,272.47

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Solution

The fourth proportional to 7,857.30, 10,843.26 and 4,272.47 is: 5,896.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.30 : 10,843.26 = 4,272.47 : x
  2. Step 2: Convert to fraction form
    7,857.30/10,843.26 = 4,272.47/x
  3. Step 3: Cross multiply
    7,857.30x = 10,843.26 × 4,272.47
  4. Step 4: Simplify right side
    7,857.30x = 46,327,448.84
  5. Step 5: Solve for x
    x = 46,327,448.84/7,857.30
  6. Step 6: Final answer
    x = 5,896.10

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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.