Home / 8,077.64-12,111.49-3,141.52

Finding the Fourth Proportional to 8,077.64, 12,111.49 and 3,141.52

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Solution

The fourth proportional to 8,077.64, 12,111.49 and 3,141.52 is: 4,710.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.64 : 12,111.49 = 3,141.52 : x
  2. Step 2: Convert to fraction form
    8,077.64/12,111.49 = 3,141.52/x
  3. Step 3: Cross multiply
    8,077.64x = 12,111.49 × 3,141.52
  4. Step 4: Simplify right side
    8,077.64x = 38,048,488.06
  5. Step 5: Solve for x
    x = 38,048,488.06/8,077.64
  6. Step 6: Final answer
    x = 4,710.35

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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.