Home / 13,290.06-19,830.96-11,893.80

Finding the Fourth Proportional to 13,290.06, 19,830.96 and 11,893.80

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Solution

The fourth proportional to 13,290.06, 19,830.96 and 11,893.80 is: 17,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.06 : 19,830.96 = 11,893.80 : x
  2. Step 2: Convert to fraction form
    13,290.06/19,830.96 = 11,893.80/x
  3. Step 3: Cross multiply
    13,290.06x = 19,830.96 × 11,893.80
  4. Step 4: Simplify right side
    13,290.06x = 235,865,472.05
  5. Step 5: Solve for x
    x = 235,865,472.05/13,290.06
  6. Step 6: Final answer
    x = 17,747.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.