Home / 18,130.35-27,195.09-10,681.15

Finding the Fourth Proportional to 18,130.35, 27,195.09 and 10,681.15

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Solution

The fourth proportional to 18,130.35, 27,195.09 and 10,681.15 is: 16,021.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.35 : 27,195.09 = 10,681.15 : x
  2. Step 2: Convert to fraction form
    18,130.35/27,195.09 = 10,681.15/x
  3. Step 3: Cross multiply
    18,130.35x = 27,195.09 × 10,681.15
  4. Step 4: Simplify right side
    18,130.35x = 290,474,838.58
  5. Step 5: Solve for x
    x = 290,474,838.58/18,130.35
  6. Step 6: Final answer
    x = 16,021.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.