Home / 21,186.94-29,237.90-11,626.99

Finding the Fourth Proportional to 21,186.94, 29,237.90 and 11,626.99

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Solution

The fourth proportional to 21,186.94, 29,237.90 and 11,626.99 is: 16,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.94 : 29,237.90 = 11,626.99 : x
  2. Step 2: Convert to fraction form
    21,186.94/29,237.90 = 11,626.99/x
  3. Step 3: Cross multiply
    21,186.94x = 29,237.90 × 11,626.99
  4. Step 4: Simplify right side
    21,186.94x = 339,948,639.69
  5. Step 5: Solve for x
    x = 339,948,639.69/21,186.94
  6. Step 6: Final answer
    x = 16,045.20

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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.