Home / 14,228.34-21,342.83-3,698.78

Finding the Fourth Proportional to 14,228.34, 21,342.83 and 3,698.78

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Solution

The fourth proportional to 14,228.34, 21,342.83 and 3,698.78 is: 5,548.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,228.34 : 21,342.83 = 3,698.78 : x
  2. Step 2: Convert to fraction form
    14,228.34/21,342.83 = 3,698.78/x
  3. Step 3: Cross multiply
    14,228.34x = 21,342.83 × 3,698.78
  4. Step 4: Simplify right side
    14,228.34x = 78,942,307.54
  5. Step 5: Solve for x
    x = 78,942,307.54/14,228.34
  6. Step 6: Final answer
    x = 5,548.24

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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.