Home / 12,615.48-18,922.50-3,849.70

Finding the Fourth Proportional to 12,615.48, 18,922.50 and 3,849.70

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Solution

The fourth proportional to 12,615.48, 18,922.50 and 3,849.70 is: 5,774.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.48 : 18,922.50 = 3,849.70 : x
  2. Step 2: Convert to fraction form
    12,615.48/18,922.50 = 3,849.70/x
  3. Step 3: Cross multiply
    12,615.48x = 18,922.50 × 3,849.70
  4. Step 4: Simplify right side
    12,615.48x = 72,845,948.25
  5. Step 5: Solve for x
    x = 72,845,948.25/12,615.48
  6. Step 6: Final answer
    x = 5,774.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.