Home / 13,887.44-19,142.16-8,570.60

Finding the Fourth Proportional to 13,887.44, 19,142.16 and 8,570.60

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Solution

The fourth proportional to 13,887.44, 19,142.16 and 8,570.60 is: 11,813.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.44 : 19,142.16 = 8,570.60 : x
  2. Step 2: Convert to fraction form
    13,887.44/19,142.16 = 8,570.60/x
  3. Step 3: Cross multiply
    13,887.44x = 19,142.16 × 8,570.60
  4. Step 4: Simplify right side
    13,887.44x = 164,059,796.50
  5. Step 5: Solve for x
    x = 164,059,796.50/13,887.44
  6. Step 6: Final answer
    x = 11,813.54

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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.