Home / 13,859.35-19,122.64-10,282.57

Finding the Fourth Proportional to 13,859.35, 19,122.64 and 10,282.57

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Solution

The fourth proportional to 13,859.35, 19,122.64 and 10,282.57 is: 14,187.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.35 : 19,122.64 = 10,282.57 : x
  2. Step 2: Convert to fraction form
    13,859.35/19,122.64 = 10,282.57/x
  3. Step 3: Cross multiply
    13,859.35x = 19,122.64 × 10,282.57
  4. Step 4: Simplify right side
    13,859.35x = 196,629,810.87
  5. Step 5: Solve for x
    x = 196,629,810.87/13,859.35
  6. Step 6: Final answer
    x = 14,187.52

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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.