Home / 9,112.17-12,575.38-6,870.09

Finding the Fourth Proportional to 9,112.17, 12,575.38 and 6,870.09

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Solution

The fourth proportional to 9,112.17, 12,575.38 and 6,870.09 is: 9,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,112.17 : 12,575.38 = 6,870.09 : x
  2. Step 2: Convert to fraction form
    9,112.17/12,575.38 = 6,870.09/x
  3. Step 3: Cross multiply
    9,112.17x = 12,575.38 × 6,870.09
  4. Step 4: Simplify right side
    9,112.17x = 86,393,975.21
  5. Step 5: Solve for x
    x = 86,393,975.21/9,112.17
  6. Step 6: Final answer
    x = 9,481.16

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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.