Home / 13,162.68-19,747.98-3,928.68

Finding the Fourth Proportional to 13,162.68, 19,747.98 and 3,928.68

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Solution

The fourth proportional to 13,162.68, 19,747.98 and 3,928.68 is: 5,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.68 : 19,747.98 = 3,928.68 : x
  2. Step 2: Convert to fraction form
    13,162.68/19,747.98 = 3,928.68/x
  3. Step 3: Cross multiply
    13,162.68x = 19,747.98 × 3,928.68
  4. Step 4: Simplify right side
    13,162.68x = 77,583,494.07
  5. Step 5: Solve for x
    x = 77,583,494.07/13,162.68
  6. Step 6: Final answer
    x = 5,894.20

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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.