Home / 13,969.22-19,276.67-7,999.52

Finding the Fourth Proportional to 13,969.22, 19,276.67 and 7,999.52

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Solution

The fourth proportional to 13,969.22, 19,276.67 and 7,999.52 is: 11,038.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.22 : 19,276.67 = 7,999.52 : x
  2. Step 2: Convert to fraction form
    13,969.22/19,276.67 = 7,999.52/x
  3. Step 3: Cross multiply
    13,969.22x = 19,276.67 × 7,999.52
  4. Step 4: Simplify right side
    13,969.22x = 154,204,067.20
  5. Step 5: Solve for x
    x = 154,204,067.20/13,969.22
  6. Step 6: Final answer
    x = 11,038.85

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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.