Home / 12,853.45-19,281.72-4,531.75

Finding the Fourth Proportional to 12,853.45, 19,281.72 and 4,531.75

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Solution

The fourth proportional to 12,853.45, 19,281.72 and 4,531.75 is: 6,798.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,853.45 : 19,281.72 = 4,531.75 : x
  2. Step 2: Convert to fraction form
    12,853.45/19,281.72 = 4,531.75/x
  3. Step 3: Cross multiply
    12,853.45x = 19,281.72 × 4,531.75
  4. Step 4: Simplify right side
    12,853.45x = 87,379,815.54
  5. Step 5: Solve for x
    x = 87,379,815.54/12,853.45
  6. Step 6: Final answer
    x = 6,798.16

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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.