Home / 13,754.27-18,976.41-7,703.57

Finding the Fourth Proportional to 13,754.27, 18,976.41 and 7,703.57

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Solution

The fourth proportional to 13,754.27, 18,976.41 and 7,703.57 is: 10,628.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.27 : 18,976.41 = 7,703.57 : x
  2. Step 2: Convert to fraction form
    13,754.27/18,976.41 = 7,703.57/x
  3. Step 3: Cross multiply
    13,754.27x = 18,976.41 × 7,703.57
  4. Step 4: Simplify right side
    13,754.27x = 146,186,085.80
  5. Step 5: Solve for x
    x = 146,186,085.80/13,754.27
  6. Step 6: Final answer
    x = 10,628.42

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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.