Home / 8,307.18-12,456.42-2,759.22

Finding the Fourth Proportional to 8,307.18, 12,456.42 and 2,759.22

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Solution

The fourth proportional to 8,307.18, 12,456.42 and 2,759.22 is: 4,137.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.18 : 12,456.42 = 2,759.22 : x
  2. Step 2: Convert to fraction form
    8,307.18/12,456.42 = 2,759.22/x
  3. Step 3: Cross multiply
    8,307.18x = 12,456.42 × 2,759.22
  4. Step 4: Simplify right side
    8,307.18x = 34,370,003.19
  5. Step 5: Solve for x
    x = 34,370,003.19/8,307.18
  6. Step 6: Final answer
    x = 4,137.39

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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.