Home / 13,631.73-18,804.09-8,587.26

Finding the Fourth Proportional to 13,631.73, 18,804.09 and 8,587.26

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Solution

The fourth proportional to 13,631.73, 18,804.09 and 8,587.26 is: 11,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.73 : 18,804.09 = 8,587.26 : x
  2. Step 2: Convert to fraction form
    13,631.73/18,804.09 = 8,587.26/x
  3. Step 3: Cross multiply
    13,631.73x = 18,804.09 × 8,587.26
  4. Step 4: Simplify right side
    13,631.73x = 161,475,609.89
  5. Step 5: Solve for x
    x = 161,475,609.89/13,631.73
  6. Step 6: Final answer
    x = 11,845.57

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1.5x scale

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.