Home / 7,986.77-11,976.18-4,656.15

Finding the Fourth Proportional to 7,986.77, 11,976.18 and 4,656.15

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Solution

The fourth proportional to 7,986.77, 11,976.18 and 4,656.15 is: 6,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.77 : 11,976.18 = 4,656.15 : x
  2. Step 2: Convert to fraction form
    7,986.77/11,976.18 = 4,656.15/x
  3. Step 3: Cross multiply
    7,986.77x = 11,976.18 × 4,656.15
  4. Step 4: Simplify right side
    7,986.77x = 55,762,830.63
  5. Step 5: Solve for x
    x = 55,762,830.63/7,986.77
  6. Step 6: Final answer
    x = 6,981.90

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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.