Home / 13,968.50-19,274.92-7,999.82

Finding the Fourth Proportional to 13,968.50, 19,274.92 and 7,999.82

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Solution

The fourth proportional to 13,968.50, 19,274.92 and 7,999.82 is: 11,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.50 : 19,274.92 = 7,999.82 : x
  2. Step 2: Convert to fraction form
    13,968.50/19,274.92 = 7,999.82/x
  3. Step 3: Cross multiply
    13,968.50x = 19,274.92 × 7,999.82
  4. Step 4: Simplify right side
    13,968.50x = 154,195,774.14
  5. Step 5: Solve for x
    x = 154,195,774.14/13,968.50
  6. Step 6: Final answer
    x = 11,038.82

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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.