Home / 13,850.09-19,111.65-8,185.08

Finding the Fourth Proportional to 13,850.09, 19,111.65 and 8,185.08

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Solution

The fourth proportional to 13,850.09, 19,111.65 and 8,185.08 is: 11,294.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,850.09 : 19,111.65 = 8,185.08 : x
  2. Step 2: Convert to fraction form
    13,850.09/19,111.65 = 8,185.08/x
  3. Step 3: Cross multiply
    13,850.09x = 19,111.65 × 8,185.08
  4. Step 4: Simplify right side
    13,850.09x = 156,430,263.90
  5. Step 5: Solve for x
    x = 156,430,263.90/13,850.09
  6. Step 6: Final answer
    x = 11,294.53

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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.