Home / 12,928.88-19,394.45-3,568.91

Finding the Fourth Proportional to 12,928.88, 19,394.45 and 3,568.91

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Solution

The fourth proportional to 12,928.88, 19,394.45 and 3,568.91 is: 5,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.88 : 19,394.45 = 3,568.91 : x
  2. Step 2: Convert to fraction form
    12,928.88/19,394.45 = 3,568.91/x
  3. Step 3: Cross multiply
    12,928.88x = 19,394.45 × 3,568.91
  4. Step 4: Simplify right side
    12,928.88x = 69,216,931.73
  5. Step 5: Solve for x
    x = 69,216,931.73/12,928.88
  6. Step 6: Final answer
    x = 5,353.67

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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.