Home / 18,518.85-25,556.08-10,020.97

Finding the Fourth Proportional to 18,518.85, 25,556.08 and 10,020.97

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Solution

The fourth proportional to 18,518.85, 25,556.08 and 10,020.97 is: 13,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.85 : 25,556.08 = 10,020.97 : x
  2. Step 2: Convert to fraction form
    18,518.85/25,556.08 = 10,020.97/x
  3. Step 3: Cross multiply
    18,518.85x = 25,556.08 × 10,020.97
  4. Step 4: Simplify right side
    18,518.85x = 256,096,729.46
  5. Step 5: Solve for x
    x = 256,096,729.46/18,518.85
  6. Step 6: Final answer
    x = 13,828.98

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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.