Home / 12,857.84-19,277.04-10,259.36

Finding the Fourth Proportional to 12,857.84, 19,277.04 and 10,259.36

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Solution

The fourth proportional to 12,857.84, 19,277.04 and 10,259.36 is: 15,381.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.84 : 19,277.04 = 10,259.36 : x
  2. Step 2: Convert to fraction form
    12,857.84/19,277.04 = 10,259.36/x
  3. Step 3: Cross multiply
    12,857.84x = 19,277.04 × 10,259.36
  4. Step 4: Simplify right side
    12,857.84x = 197,770,093.09
  5. Step 5: Solve for x
    x = 197,770,093.09/12,857.84
  6. Step 6: Final answer
    x = 15,381.28

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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.