Home / 15,233.26-21,021.78-8,518.90

Finding the Fourth Proportional to 15,233.26, 21,021.78 and 8,518.90

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Solution

The fourth proportional to 15,233.26, 21,021.78 and 8,518.90 is: 11,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.26 : 21,021.78 = 8,518.90 : x
  2. Step 2: Convert to fraction form
    15,233.26/21,021.78 = 8,518.90/x
  3. Step 3: Cross multiply
    15,233.26x = 21,021.78 × 8,518.90
  4. Step 4: Simplify right side
    15,233.26x = 179,082,441.64
  5. Step 5: Solve for x
    x = 179,082,441.64/15,233.26
  6. Step 6: Final answer
    x = 11,756.02

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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.