Home / 13,991.26-19,307.82-7,703.50

Finding the Fourth Proportional to 13,991.26, 19,307.82 and 7,703.50

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Solution

The fourth proportional to 13,991.26, 19,307.82 and 7,703.50 is: 10,630.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.26 : 19,307.82 = 7,703.50 : x
  2. Step 2: Convert to fraction form
    13,991.26/19,307.82 = 7,703.50/x
  3. Step 3: Cross multiply
    13,991.26x = 19,307.82 × 7,703.50
  4. Step 4: Simplify right side
    13,991.26x = 148,737,791.37
  5. Step 5: Solve for x
    x = 148,737,791.37/13,991.26
  6. Step 6: Final answer
    x = 10,630.76

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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.