Home / 14,042.56-19,378.20-7,754.80

Finding the Fourth Proportional to 14,042.56, 19,378.20 and 7,754.80

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Solution

The fourth proportional to 14,042.56, 19,378.20 and 7,754.80 is: 10,701.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.56 : 19,378.20 = 7,754.80 : x
  2. Step 2: Convert to fraction form
    14,042.56/19,378.20 = 7,754.80/x
  3. Step 3: Cross multiply
    14,042.56x = 19,378.20 × 7,754.80
  4. Step 4: Simplify right side
    14,042.56x = 150,274,065.36
  5. Step 5: Solve for x
    x = 150,274,065.36/14,042.56
  6. Step 6: Final answer
    x = 10,701.33

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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.