Home / 15,895.49-21,935.84-8,821.98

Finding the Fourth Proportional to 15,895.49, 21,935.84 and 8,821.98

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Solution

The fourth proportional to 15,895.49, 21,935.84 and 8,821.98 is: 12,174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,895.49 : 21,935.84 = 8,821.98 : x
  2. Step 2: Convert to fraction form
    15,895.49/21,935.84 = 8,821.98/x
  3. Step 3: Cross multiply
    15,895.49x = 21,935.84 × 8,821.98
  4. Step 4: Simplify right side
    15,895.49x = 193,517,497.65
  5. Step 5: Solve for x
    x = 193,517,497.65/15,895.49
  6. Step 6: Final answer
    x = 12,174.37

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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.