Home / 13,968.60-19,279.62-8,860.82

Finding the Fourth Proportional to 13,968.60, 19,279.62 and 8,860.82

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Solution

The fourth proportional to 13,968.60, 19,279.62 and 8,860.82 is: 12,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.60 : 19,279.62 = 8,860.82 : x
  2. Step 2: Convert to fraction form
    13,968.60/19,279.62 = 8,860.82/x
  3. Step 3: Cross multiply
    13,968.60x = 19,279.62 × 8,860.82
  4. Step 4: Simplify right side
    13,968.60x = 170,833,242.49
  5. Step 5: Solve for x
    x = 170,833,242.49/13,968.60
  6. Step 6: Final answer
    x = 12,229.80

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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.