Home / 18,628.03-25,706.78-11,072.89

Finding the Fourth Proportional to 18,628.03, 25,706.78 and 11,072.89

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Solution

The fourth proportional to 18,628.03, 25,706.78 and 11,072.89 is: 15,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.03 : 25,706.78 = 11,072.89 : x
  2. Step 2: Convert to fraction form
    18,628.03/25,706.78 = 11,072.89/x
  3. Step 3: Cross multiply
    18,628.03x = 25,706.78 × 11,072.89
  4. Step 4: Simplify right side
    18,628.03x = 284,648,347.19
  5. Step 5: Solve for x
    x = 284,648,347.19/18,628.03
  6. Step 6: Final answer
    x = 15,280.65

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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.