Home / 13,218.28-19,827.48-3,357.55

Finding the Fourth Proportional to 13,218.28, 19,827.48 and 3,357.55

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Solution

The fourth proportional to 13,218.28, 19,827.48 and 3,357.55 is: 5,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.28 : 19,827.48 = 3,357.55 : x
  2. Step 2: Convert to fraction form
    13,218.28/19,827.48 = 3,357.55/x
  3. Step 3: Cross multiply
    13,218.28x = 19,827.48 × 3,357.55
  4. Step 4: Simplify right side
    13,218.28x = 66,571,755.47
  5. Step 5: Solve for x
    x = 66,571,755.47/13,218.28
  6. Step 6: Final answer
    x = 5,036.34

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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.