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Finding the Fourth Proportional to 18,137.81, 25,031.29 and 10,180.03

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Solution

The fourth proportional to 18,137.81, 25,031.29 and 10,180.03 is: 14,049.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.81 : 25,031.29 = 10,180.03 : x
  2. Step 2: Convert to fraction form
    18,137.81/25,031.29 = 10,180.03/x
  3. Step 3: Cross multiply
    18,137.81x = 25,031.29 × 10,180.03
  4. Step 4: Simplify right side
    18,137.81x = 254,819,283.14
  5. Step 5: Solve for x
    x = 254,819,283.14/18,137.81
  6. Step 6: Final answer
    x = 14,049.07

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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.