Home / 13,857.08-20,785.62-6,466.72

Finding the Fourth Proportional to 13,857.08, 20,785.62 and 6,466.72

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Solution

The fourth proportional to 13,857.08, 20,785.62 and 6,466.72 is: 9,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.08 : 20,785.62 = 6,466.72 : x
  2. Step 2: Convert to fraction form
    13,857.08/20,785.62 = 6,466.72/x
  3. Step 3: Cross multiply
    13,857.08x = 20,785.62 × 6,466.72
  4. Step 4: Simplify right side
    13,857.08x = 134,414,784.57
  5. Step 5: Solve for x
    x = 134,414,784.57/13,857.08
  6. Step 6: Final answer
    x = 9,700.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.