Home / 13,862.06-19,129.83-7,893.75

Finding the Fourth Proportional to 13,862.06, 19,129.83 and 7,893.75

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Solution

The fourth proportional to 13,862.06, 19,129.83 and 7,893.75 is: 10,893.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.06 : 19,129.83 = 7,893.75 : x
  2. Step 2: Convert to fraction form
    13,862.06/19,129.83 = 7,893.75/x
  3. Step 3: Cross multiply
    13,862.06x = 19,129.83 × 7,893.75
  4. Step 4: Simplify right side
    13,862.06x = 151,006,101.83
  5. Step 5: Solve for x
    x = 151,006,101.83/13,862.06
  6. Step 6: Final answer
    x = 10,893.48

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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.