Home / 18,957.31-28,439.32-6,474.41

Finding the Fourth Proportional to 18,957.31, 28,439.32 and 6,474.41

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Solution

The fourth proportional to 18,957.31, 28,439.32 and 6,474.41 is: 9,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.31 : 28,439.32 = 6,474.41 : x
  2. Step 2: Convert to fraction form
    18,957.31/28,439.32 = 6,474.41/x
  3. Step 3: Cross multiply
    18,957.31x = 28,439.32 × 6,474.41
  4. Step 4: Simplify right side
    18,957.31x = 184,127,817.80
  5. Step 5: Solve for x
    x = 184,127,817.80/18,957.31
  6. Step 6: Final answer
    x = 9,712.76

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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.