Home / 12,928.64-19,394.07-3,568.65

Finding the Fourth Proportional to 12,928.64, 19,394.07 and 3,568.65

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Solution

The fourth proportional to 12,928.64, 19,394.07 and 3,568.65 is: 5,353.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.64 : 19,394.07 = 3,568.65 : x
  2. Step 2: Convert to fraction form
    12,928.64/19,394.07 = 3,568.65/x
  3. Step 3: Cross multiply
    12,928.64x = 19,394.07 × 3,568.65
  4. Step 4: Simplify right side
    12,928.64x = 69,210,630.06
  5. Step 5: Solve for x
    x = 69,210,630.06/12,928.64
  6. Step 6: Final answer
    x = 5,353.28

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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.