Home / 12,321.74-18,482.07-3,557.02

Finding the Fourth Proportional to 12,321.74, 18,482.07 and 3,557.02

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Solution

The fourth proportional to 12,321.74, 18,482.07 and 3,557.02 is: 5,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.74 : 18,482.07 = 3,557.02 : x
  2. Step 2: Convert to fraction form
    12,321.74/18,482.07 = 3,557.02/x
  3. Step 3: Cross multiply
    12,321.74x = 18,482.07 × 3,557.02
  4. Step 4: Simplify right side
    12,321.74x = 65,741,092.63
  5. Step 5: Solve for x
    x = 65,741,092.63/12,321.74
  6. Step 6: Final answer
    x = 5,335.37

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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.