Home / 8,506.36-12,759.90-4,127.50

Finding the Fourth Proportional to 8,506.36, 12,759.90 and 4,127.50

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Solution

The fourth proportional to 8,506.36, 12,759.90 and 4,127.50 is: 6,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.36 : 12,759.90 = 4,127.50 : x
  2. Step 2: Convert to fraction form
    8,506.36/12,759.90 = 4,127.50/x
  3. Step 3: Cross multiply
    8,506.36x = 12,759.90 × 4,127.50
  4. Step 4: Simplify right side
    8,506.36x = 52,666,487.25
  5. Step 5: Solve for x
    x = 52,666,487.25/8,506.36
  6. Step 6: Final answer
    x = 6,191.42

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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.