Home / 19,669.84-27,131.98-11,706.12

Finding the Fourth Proportional to 19,669.84, 27,131.98 and 11,706.12

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Solution

The fourth proportional to 19,669.84, 27,131.98 and 11,706.12 is: 16,147.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.84 : 27,131.98 = 11,706.12 : x
  2. Step 2: Convert to fraction form
    19,669.84/27,131.98 = 11,706.12/x
  3. Step 3: Cross multiply
    19,669.84x = 27,131.98 × 11,706.12
  4. Step 4: Simplify right side
    19,669.84x = 317,610,213.72
  5. Step 5: Solve for x
    x = 317,610,213.72/19,669.84
  6. Step 6: Final answer
    x = 16,147.07

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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.