Home / 12,511.56-18,770.31-3,746.28

Finding the Fourth Proportional to 12,511.56, 18,770.31 and 3,746.28

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Solution

The fourth proportional to 12,511.56, 18,770.31 and 3,746.28 is: 5,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.56 : 18,770.31 = 3,746.28 : x
  2. Step 2: Convert to fraction form
    12,511.56/18,770.31 = 3,746.28/x
  3. Step 3: Cross multiply
    12,511.56x = 18,770.31 × 3,746.28
  4. Step 4: Simplify right side
    12,511.56x = 70,318,836.95
  5. Step 5: Solve for x
    x = 70,318,836.95/12,511.56
  6. Step 6: Final answer
    x = 5,620.31

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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.