Home / 13,515.53-18,650.57-7,546.05

Finding the Fourth Proportional to 13,515.53, 18,650.57 and 7,546.05

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Solution

The fourth proportional to 13,515.53, 18,650.57 and 7,546.05 is: 10,413.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.53 : 18,650.57 = 7,546.05 : x
  2. Step 2: Convert to fraction form
    13,515.53/18,650.57 = 7,546.05/x
  3. Step 3: Cross multiply
    13,515.53x = 18,650.57 × 7,546.05
  4. Step 4: Simplify right side
    13,515.53x = 140,738,096.02
  5. Step 5: Solve for x
    x = 140,738,096.02/13,515.53
  6. Step 6: Final answer
    x = 10,413.07

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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.