Home / 15,433.23-21,297.79-8,359.67

Finding the Fourth Proportional to 15,433.23, 21,297.79 and 8,359.67

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Solution

The fourth proportional to 15,433.23, 21,297.79 and 8,359.67 is: 11,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.23 : 21,297.79 = 8,359.67 : x
  2. Step 2: Convert to fraction form
    15,433.23/21,297.79 = 8,359.67/x
  3. Step 3: Cross multiply
    15,433.23x = 21,297.79 × 8,359.67
  4. Step 4: Simplify right side
    15,433.23x = 178,042,347.84
  5. Step 5: Solve for x
    x = 178,042,347.84/15,433.23
  6. Step 6: Final answer
    x = 11,536.30

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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.