Home / 18,013.75-27,020.58-10,013.60

Finding the Fourth Proportional to 18,013.75, 27,020.58 and 10,013.60

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Solution

The fourth proportional to 18,013.75, 27,020.58 and 10,013.60 is: 15,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.75 : 27,020.58 = 10,013.60 : x
  2. Step 2: Convert to fraction form
    18,013.75/27,020.58 = 10,013.60/x
  3. Step 3: Cross multiply
    18,013.75x = 27,020.58 × 10,013.60
  4. Step 4: Simplify right side
    18,013.75x = 270,573,279.89
  5. Step 5: Solve for x
    x = 270,573,279.89/18,013.75
  6. Step 6: Final answer
    x = 15,020.38

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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.