Home / 15,233.31-21,021.46-8,519.67

Finding the Fourth Proportional to 15,233.31, 21,021.46 and 8,519.67

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Solution

The fourth proportional to 15,233.31, 21,021.46 and 8,519.67 is: 11,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,233.31 : 21,021.46 = 8,519.67 : x
  2. Step 2: Convert to fraction form
    15,233.31/21,021.46 = 8,519.67/x
  3. Step 3: Cross multiply
    15,233.31x = 21,021.46 × 8,519.67
  4. Step 4: Simplify right side
    15,233.31x = 179,095,880.82
  5. Step 5: Solve for x
    x = 179,095,880.82/15,233.31
  6. Step 6: Final answer
    x = 11,756.86

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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.