Home / 12,928.51-19,393.88-3,568.53

Finding the Fourth Proportional to 12,928.51, 19,393.88 and 3,568.53

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Solution

The fourth proportional to 12,928.51, 19,393.88 and 3,568.53 is: 5,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.51 : 19,393.88 = 3,568.53 : x
  2. Step 2: Convert to fraction form
    12,928.51/19,393.88 = 3,568.53/x
  3. Step 3: Cross multiply
    12,928.51x = 19,393.88 × 3,568.53
  4. Step 4: Simplify right side
    12,928.51x = 69,207,608.46
  5. Step 5: Solve for x
    x = 69,207,608.46/12,928.51
  6. Step 6: Final answer
    x = 5,353.10

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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.