Home / 7,877.25-11,823.18-3,984.39

Finding the Fourth Proportional to 7,877.25, 11,823.18 and 3,984.39

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Solution

The fourth proportional to 7,877.25, 11,823.18 and 3,984.39 is: 5,980.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.25 : 11,823.18 = 3,984.39 : x
  2. Step 2: Convert to fraction form
    7,877.25/11,823.18 = 3,984.39/x
  3. Step 3: Cross multiply
    7,877.25x = 11,823.18 × 3,984.39
  4. Step 4: Simplify right side
    7,877.25x = 47,108,160.16
  5. Step 5: Solve for x
    x = 47,108,160.16/7,877.25
  6. Step 6: Final answer
    x = 5,980.28

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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.