Home / 14,006.41-19,328.84-7,718.78

Finding the Fourth Proportional to 14,006.41, 19,328.84 and 7,718.78

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Solution

The fourth proportional to 14,006.41, 19,328.84 and 7,718.78 is: 10,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.41 : 19,328.84 = 7,718.78 : x
  2. Step 2: Convert to fraction form
    14,006.41/19,328.84 = 7,718.78/x
  3. Step 3: Cross multiply
    14,006.41x = 19,328.84 × 7,718.78
  4. Step 4: Simplify right side
    14,006.41x = 149,195,063.62
  5. Step 5: Solve for x
    x = 149,195,063.62/14,006.41
  6. Step 6: Final answer
    x = 10,651.91

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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.