Home / 7,021.42-10,520.23-4,242.25

Finding the Fourth Proportional to 7,021.42, 10,520.23 and 4,242.25

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Solution

The fourth proportional to 7,021.42, 10,520.23 and 4,242.25 is: 6,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.42 : 10,520.23 = 4,242.25 : x
  2. Step 2: Convert to fraction form
    7,021.42/10,520.23 = 4,242.25/x
  3. Step 3: Cross multiply
    7,021.42x = 10,520.23 × 4,242.25
  4. Step 4: Simplify right side
    7,021.42x = 44,629,445.72
  5. Step 5: Solve for x
    x = 44,629,445.72/7,021.42
  6. Step 6: Final answer
    x = 6,356.19

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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.