Home / 8,108.07-12,127.53-4,980.39

Finding the Fourth Proportional to 8,108.07, 12,127.53 and 4,980.39

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Solution

The fourth proportional to 8,108.07, 12,127.53 and 4,980.39 is: 7,449.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.07 : 12,127.53 = 4,980.39 : x
  2. Step 2: Convert to fraction form
    8,108.07/12,127.53 = 4,980.39/x
  3. Step 3: Cross multiply
    8,108.07x = 12,127.53 × 4,980.39
  4. Step 4: Simplify right side
    8,108.07x = 60,399,829.14
  5. Step 5: Solve for x
    x = 60,399,829.14/8,108.07
  6. Step 6: Final answer
    x = 7,449.35

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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.