Home / 12,453.83-18,680.87-3,570.20

Finding the Fourth Proportional to 12,453.83, 18,680.87 and 3,570.20

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Solution

The fourth proportional to 12,453.83, 18,680.87 and 3,570.20 is: 5,355.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,453.83 : 18,680.87 = 3,570.20 : x
  2. Step 2: Convert to fraction form
    12,453.83/18,680.87 = 3,570.20/x
  3. Step 3: Cross multiply
    12,453.83x = 18,680.87 × 3,570.20
  4. Step 4: Simplify right side
    12,453.83x = 66,694,442.07
  5. Step 5: Solve for x
    x = 66,694,442.07/12,453.83
  6. Step 6: Final answer
    x = 5,355.34

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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.