Home / 19,758.90-27,265.89-10,806.21

Finding the Fourth Proportional to 19,758.90, 27,265.89 and 10,806.21

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Solution

The fourth proportional to 19,758.90, 27,265.89 and 10,806.21 is: 14,911.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.90 : 27,265.89 = 10,806.21 : x
  2. Step 2: Convert to fraction form
    19,758.90/27,265.89 = 10,806.21/x
  3. Step 3: Cross multiply
    19,758.90x = 27,265.89 × 10,806.21
  4. Step 4: Simplify right side
    19,758.90x = 294,640,933.18
  5. Step 5: Solve for x
    x = 294,640,933.18/19,758.90
  6. Step 6: Final answer
    x = 14,911.81

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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.