Home / 8,531.15-12,796.70-3,852.80

Finding the Fourth Proportional to 8,531.15, 12,796.70 and 3,852.80

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Solution

The fourth proportional to 8,531.15, 12,796.70 and 3,852.80 is: 5,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.15 : 12,796.70 = 3,852.80 : x
  2. Step 2: Convert to fraction form
    8,531.15/12,796.70 = 3,852.80/x
  3. Step 3: Cross multiply
    8,531.15x = 12,796.70 × 3,852.80
  4. Step 4: Simplify right side
    8,531.15x = 49,303,071.41
  5. Step 5: Solve for x
    x = 49,303,071.41/8,531.15
  6. Step 6: Final answer
    x = 5,779.19

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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.