Home / 15,453.74-23,172.30-4,920.90

Finding the Fourth Proportional to 15,453.74, 23,172.30 and 4,920.90

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Solution

The fourth proportional to 15,453.74, 23,172.30 and 4,920.90 is: 7,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.74 : 23,172.30 = 4,920.90 : x
  2. Step 2: Convert to fraction form
    15,453.74/23,172.30 = 4,920.90/x
  3. Step 3: Cross multiply
    15,453.74x = 23,172.30 × 4,920.90
  4. Step 4: Simplify right side
    15,453.74x = 114,028,571.07
  5. Step 5: Solve for x
    x = 114,028,571.07/15,453.74
  6. Step 6: Final answer
    x = 7,378.71

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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.