Home / 7,837.72-11,757.60-4,140.09

Finding the Fourth Proportional to 7,837.72, 11,757.60 and 4,140.09

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Solution

The fourth proportional to 7,837.72, 11,757.60 and 4,140.09 is: 6,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.72 : 11,757.60 = 4,140.09 : x
  2. Step 2: Convert to fraction form
    7,837.72/11,757.60 = 4,140.09/x
  3. Step 3: Cross multiply
    7,837.72x = 11,757.60 × 4,140.09
  4. Step 4: Simplify right side
    7,837.72x = 48,677,522.18
  5. Step 5: Solve for x
    x = 48,677,522.18/7,837.72
  6. Step 6: Final answer
    x = 6,210.67

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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.