Home / 19,664.84-27,136.38-11,281.34

Finding the Fourth Proportional to 19,664.84, 27,136.38 and 11,281.34

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Solution

The fourth proportional to 19,664.84, 27,136.38 and 11,281.34 is: 15,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.84 : 27,136.38 = 11,281.34 : x
  2. Step 2: Convert to fraction form
    19,664.84/27,136.38 = 11,281.34/x
  3. Step 3: Cross multiply
    19,664.84x = 27,136.38 × 11,281.34
  4. Step 4: Simplify right side
    19,664.84x = 306,134,729.15
  5. Step 5: Solve for x
    x = 306,134,729.15/19,664.84
  6. Step 6: Final answer
    x = 15,567.62

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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.