Home / 8,478.37-11,699.68-4,701.31

Finding the Fourth Proportional to 8,478.37, 11,699.68 and 4,701.31

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Solution

The fourth proportional to 8,478.37, 11,699.68 and 4,701.31 is: 6,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.37 : 11,699.68 = 4,701.31 : x
  2. Step 2: Convert to fraction form
    8,478.37/11,699.68 = 4,701.31/x
  3. Step 3: Cross multiply
    8,478.37x = 11,699.68 × 4,701.31
  4. Step 4: Simplify right side
    8,478.37x = 55,003,799.07
  5. Step 5: Solve for x
    x = 55,003,799.07/8,478.37
  6. Step 6: Final answer
    x = 6,487.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.