Home / 13,135.51-18,146.75-8,608.94

Finding the Fourth Proportional to 13,135.51, 18,146.75 and 8,608.94

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Solution

The fourth proportional to 13,135.51, 18,146.75 and 8,608.94 is: 11,893.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.51 : 18,146.75 = 8,608.94 : x
  2. Step 2: Convert to fraction form
    13,135.51/18,146.75 = 8,608.94/x
  3. Step 3: Cross multiply
    13,135.51x = 18,146.75 × 8,608.94
  4. Step 4: Simplify right side
    13,135.51x = 156,224,212.73
  5. Step 5: Solve for x
    x = 156,224,212.73/13,135.51
  6. Step 6: Final answer
    x = 11,893.28

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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.