Home / 7,420.60-10,240.67-4,063.56

Finding the Fourth Proportional to 7,420.60, 10,240.67 and 4,063.56

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Solution

The fourth proportional to 7,420.60, 10,240.67 and 4,063.56 is: 5,607.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.60 : 10,240.67 = 4,063.56 : x
  2. Step 2: Convert to fraction form
    7,420.60/10,240.67 = 4,063.56/x
  3. Step 3: Cross multiply
    7,420.60x = 10,240.67 × 4,063.56
  4. Step 4: Simplify right side
    7,420.60x = 41,613,576.99
  5. Step 5: Solve for x
    x = 41,613,576.99/7,420.60
  6. Step 6: Final answer
    x = 5,607.85

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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.