Home / 18,556.48-25,609-11,007.28

Finding the Fourth Proportional to 18,556.48, 25,609 and 11,007.28

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Solution

The fourth proportional to 18,556.48, 25,609 and 11,007.28 is: 15,190.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.48 : 25,609 = 11,007.28 : x
  2. Step 2: Convert to fraction form
    18,556.48/25,609 = 11,007.28/x
  3. Step 3: Cross multiply
    18,556.48x = 25,609 × 11,007.28
  4. Step 4: Simplify right side
    18,556.48x = 281,885,433.52
  5. Step 5: Solve for x
    x = 281,885,433.52/18,556.48
  6. Step 6: Final answer
    x = 15,190.67

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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.