Home / 15,680.45-23,520.74-5,299.49

Finding the Fourth Proportional to 15,680.45, 23,520.74 and 5,299.49

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Solution

The fourth proportional to 15,680.45, 23,520.74 and 5,299.49 is: 7,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.45 : 23,520.74 = 5,299.49 : x
  2. Step 2: Convert to fraction form
    15,680.45/23,520.74 = 5,299.49/x
  3. Step 3: Cross multiply
    15,680.45x = 23,520.74 × 5,299.49
  4. Step 4: Simplify right side
    15,680.45x = 124,647,782.32
  5. Step 5: Solve for x
    x = 124,647,782.32/15,680.45
  6. Step 6: Final answer
    x = 7,949.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.