Home / 8,429.44-11,631.36-5,284.48

Finding the Fourth Proportional to 8,429.44, 11,631.36 and 5,284.48

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Solution

The fourth proportional to 8,429.44, 11,631.36 and 5,284.48 is: 7,291.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.44 : 11,631.36 = 5,284.48 : x
  2. Step 2: Convert to fraction form
    8,429.44/11,631.36 = 5,284.48/x
  3. Step 3: Cross multiply
    8,429.44x = 11,631.36 × 5,284.48
  4. Step 4: Simplify right side
    8,429.44x = 61,465,689.29
  5. Step 5: Solve for x
    x = 61,465,689.29/8,429.44
  6. Step 6: Final answer
    x = 7,291.79

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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.