Home / 14,438.90-21,658.46-5,078.98

Finding the Fourth Proportional to 14,438.90, 21,658.46 and 5,078.98

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Solution

The fourth proportional to 14,438.90, 21,658.46 and 5,078.98 is: 7,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.90 : 21,658.46 = 5,078.98 : x
  2. Step 2: Convert to fraction form
    14,438.90/21,658.46 = 5,078.98/x
  3. Step 3: Cross multiply
    14,438.90x = 21,658.46 × 5,078.98
  4. Step 4: Simplify right side
    14,438.90x = 110,002,843.72
  5. Step 5: Solve for x
    x = 110,002,843.72/14,438.90
  6. Step 6: Final answer
    x = 7,618.51

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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.