Home / 12,857.37-17,744.81-7,192.43

Finding the Fourth Proportional to 12,857.37, 17,744.81 and 7,192.43

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Solution

The fourth proportional to 12,857.37, 17,744.81 and 7,192.43 is: 9,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.37 : 17,744.81 = 7,192.43 : x
  2. Step 2: Convert to fraction form
    12,857.37/17,744.81 = 7,192.43/x
  3. Step 3: Cross multiply
    12,857.37x = 17,744.81 × 7,192.43
  4. Step 4: Simplify right side
    12,857.37x = 127,628,303.79
  5. Step 5: Solve for x
    x = 127,628,303.79/12,857.37
  6. Step 6: Final answer
    x = 9,926.47

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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.