Home / 8,688.81-13,033.31-2,845.47

Finding the Fourth Proportional to 8,688.81, 13,033.31 and 2,845.47

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Solution

The fourth proportional to 8,688.81, 13,033.31 and 2,845.47 is: 4,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.81 : 13,033.31 = 2,845.47 : x
  2. Step 2: Convert to fraction form
    8,688.81/13,033.31 = 2,845.47/x
  3. Step 3: Cross multiply
    8,688.81x = 13,033.31 × 2,845.47
  4. Step 4: Simplify right side
    8,688.81x = 37,085,878.38
  5. Step 5: Solve for x
    x = 37,085,878.38/8,688.81
  6. Step 6: Final answer
    x = 4,268.23

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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.