Home / 13,512.44-18,647.47-8,476.87

Finding the Fourth Proportional to 13,512.44, 18,647.47 and 8,476.87

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Solution

The fourth proportional to 13,512.44, 18,647.47 and 8,476.87 is: 11,698.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.44 : 18,647.47 = 8,476.87 : x
  2. Step 2: Convert to fraction form
    13,512.44/18,647.47 = 8,476.87/x
  3. Step 3: Cross multiply
    13,512.44x = 18,647.47 × 8,476.87
  4. Step 4: Simplify right side
    13,512.44x = 158,072,130.28
  5. Step 5: Solve for x
    x = 158,072,130.28/13,512.44
  6. Step 6: Final answer
    x = 11,698.27

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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.