Home / 15,868.72-21,896.82-8,795.08

Finding the Fourth Proportional to 15,868.72, 21,896.82 and 8,795.08

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Solution

The fourth proportional to 15,868.72, 21,896.82 and 8,795.08 is: 12,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.72 : 21,896.82 = 8,795.08 : x
  2. Step 2: Convert to fraction form
    15,868.72/21,896.82 = 8,795.08/x
  3. Step 3: Cross multiply
    15,868.72x = 21,896.82 × 8,795.08
  4. Step 4: Simplify right side
    15,868.72x = 192,584,283.65
  5. Step 5: Solve for x
    x = 192,584,283.65/15,868.72
  6. Step 6: Final answer
    x = 12,136.09

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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.