Home / 7,989.32-11,985.50-3,606.77

Finding the Fourth Proportional to 7,989.32, 11,985.50 and 3,606.77

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Solution

The fourth proportional to 7,989.32, 11,985.50 and 3,606.77 is: 5,410.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.32 : 11,985.50 = 3,606.77 : x
  2. Step 2: Convert to fraction form
    7,989.32/11,985.50 = 3,606.77/x
  3. Step 3: Cross multiply
    7,989.32x = 11,985.50 × 3,606.77
  4. Step 4: Simplify right side
    7,989.32x = 43,228,941.84
  5. Step 5: Solve for x
    x = 43,228,941.84/7,989.32
  6. Step 6: Final answer
    x = 5,410.84

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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.