Home / 14,006.45-19,328.79-7,718.82

Finding the Fourth Proportional to 14,006.45, 19,328.79 and 7,718.82

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Solution

The fourth proportional to 14,006.45, 19,328.79 and 7,718.82 is: 10,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.45 : 19,328.79 = 7,718.82 : x
  2. Step 2: Convert to fraction form
    14,006.45/19,328.79 = 7,718.82/x
  3. Step 3: Cross multiply
    14,006.45x = 19,328.79 × 7,718.82
  4. Step 4: Simplify right side
    14,006.45x = 149,195,450.83
  5. Step 5: Solve for x
    x = 149,195,450.83/14,006.45
  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.