Home / 19,939.26-27,515.14-10,986.55

Finding the Fourth Proportional to 19,939.26, 27,515.14 and 10,986.55

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Solution

The fourth proportional to 19,939.26, 27,515.14 and 10,986.55 is: 15,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.26 : 27,515.14 = 10,986.55 : x
  2. Step 2: Convert to fraction form
    19,939.26/27,515.14 = 10,986.55/x
  3. Step 3: Cross multiply
    19,939.26x = 27,515.14 × 10,986.55
  4. Step 4: Simplify right side
    19,939.26x = 302,296,461.37
  5. Step 5: Solve for x
    x = 302,296,461.37/19,939.26
  6. Step 6: Final answer
    x = 15,160.87

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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.