Home / 8,657.07-12,986.51-3,976.28

Finding the Fourth Proportional to 8,657.07, 12,986.51 and 3,976.28

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Solution

The fourth proportional to 8,657.07, 12,986.51 and 3,976.28 is: 5,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.07 : 12,986.51 = 3,976.28 : x
  2. Step 2: Convert to fraction form
    8,657.07/12,986.51 = 3,976.28/x
  3. Step 3: Cross multiply
    8,657.07x = 12,986.51 × 3,976.28
  4. Step 4: Simplify right side
    8,657.07x = 51,637,999.98
  5. Step 5: Solve for x
    x = 51,637,999.98/8,657.07
  6. Step 6: Final answer
    x = 5,964.84

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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.