Home / 13,684.08-20,532.78-4,919.70

Finding the Fourth Proportional to 13,684.08, 20,532.78 and 4,919.70

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Solution

The fourth proportional to 13,684.08, 20,532.78 and 4,919.70 is: 7,381.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.08 : 20,532.78 = 4,919.70 : x
  2. Step 2: Convert to fraction form
    13,684.08/20,532.78 = 4,919.70/x
  3. Step 3: Cross multiply
    13,684.08x = 20,532.78 × 4,919.70
  4. Step 4: Simplify right side
    13,684.08x = 101,015,117.77
  5. Step 5: Solve for x
    x = 101,015,117.77/13,684.08
  6. Step 6: Final answer
    x = 7,381.94

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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.