Home / 11,219.81-16,830.95-3,822.89

Finding the Fourth Proportional to 11,219.81, 16,830.95 and 3,822.89

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Solution

The fourth proportional to 11,219.81, 16,830.95 and 3,822.89 is: 5,734.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.81 : 16,830.95 = 3,822.89 : x
  2. Step 2: Convert to fraction form
    11,219.81/16,830.95 = 3,822.89/x
  3. Step 3: Cross multiply
    11,219.81x = 16,830.95 × 3,822.89
  4. Step 4: Simplify right side
    11,219.81x = 64,342,767.18
  5. Step 5: Solve for x
    x = 64,342,767.18/11,219.81
  6. Step 6: Final answer
    x = 5,734.75

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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.