Home / 12,618.98-18,930.30-3,852.76

Finding the Fourth Proportional to 12,618.98, 18,930.30 and 3,852.76

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Solution

The fourth proportional to 12,618.98, 18,930.30 and 3,852.76 is: 5,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.98 : 18,930.30 = 3,852.76 : x
  2. Step 2: Convert to fraction form
    12,618.98/18,930.30 = 3,852.76/x
  3. Step 3: Cross multiply
    12,618.98x = 18,930.30 × 3,852.76
  4. Step 4: Simplify right side
    12,618.98x = 72,933,902.63
  5. Step 5: Solve for x
    x = 72,933,902.63/12,618.98
  6. Step 6: Final answer
    x = 5,779.70

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1.5x scale

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.