Home / 13,718.63-20,577.79-3,330.38

Finding the Fourth Proportional to 13,718.63, 20,577.79 and 3,330.38

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Solution

The fourth proportional to 13,718.63, 20,577.79 and 3,330.38 is: 4,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.63 : 20,577.79 = 3,330.38 : x
  2. Step 2: Convert to fraction form
    13,718.63/20,577.79 = 3,330.38/x
  3. Step 3: Cross multiply
    13,718.63x = 20,577.79 × 3,330.38
  4. Step 4: Simplify right side
    13,718.63x = 68,531,860.26
  5. Step 5: Solve for x
    x = 68,531,860.26/13,718.63
  6. Step 6: Final answer
    x = 4,995.53

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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.