Home / 14,078.46-21,126.50-5,758.55

Finding the Fourth Proportional to 14,078.46, 21,126.50 and 5,758.55

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Solution

The fourth proportional to 14,078.46, 21,126.50 and 5,758.55 is: 8,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.46 : 21,126.50 = 5,758.55 : x
  2. Step 2: Convert to fraction form
    14,078.46/21,126.50 = 5,758.55/x
  3. Step 3: Cross multiply
    14,078.46x = 21,126.50 × 5,758.55
  4. Step 4: Simplify right side
    14,078.46x = 121,658,006.58
  5. Step 5: Solve for x
    x = 121,658,006.58/14,078.46
  6. Step 6: Final answer
    x = 8,641.43

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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.