Home / 13,485.05-20,230.46-4,720.25

Finding the Fourth Proportional to 13,485.05, 20,230.46 and 4,720.25

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Solution

The fourth proportional to 13,485.05, 20,230.46 and 4,720.25 is: 7,081.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.05 : 20,230.46 = 4,720.25 : x
  2. Step 2: Convert to fraction form
    13,485.05/20,230.46 = 4,720.25/x
  3. Step 3: Cross multiply
    13,485.05x = 20,230.46 × 4,720.25
  4. Step 4: Simplify right side
    13,485.05x = 95,492,704.06
  5. Step 5: Solve for x
    x = 95,492,704.06/13,485.05
  6. Step 6: Final answer
    x = 7,081.38

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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.