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Finding the Fourth Proportional to 19,937.94, 27,515.06 and 10,986.12

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Solution

The fourth proportional to 19,937.94, 27,515.06 and 10,986.12 is: 15,161.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.94 : 27,515.06 = 10,986.12 : x
  2. Step 2: Convert to fraction form
    19,937.94/27,515.06 = 10,986.12/x
  3. Step 3: Cross multiply
    19,937.94x = 27,515.06 × 10,986.12
  4. Step 4: Simplify right side
    19,937.94x = 302,283,750.97
  5. Step 5: Solve for x
    x = 302,283,750.97/19,937.94
  6. Step 6: Final answer
    x = 15,161.23

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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.