Home / 15,858.63-23,787.93-4,171.86

Finding the Fourth Proportional to 15,858.63, 23,787.93 and 4,171.86

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Solution

The fourth proportional to 15,858.63, 23,787.93 and 4,171.86 is: 6,257.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858.63 : 23,787.93 = 4,171.86 : x
  2. Step 2: Convert to fraction form
    15,858.63/23,787.93 = 4,171.86/x
  3. Step 3: Cross multiply
    15,858.63x = 23,787.93 × 4,171.86
  4. Step 4: Simplify right side
    15,858.63x = 99,239,913.65
  5. Step 5: Solve for x
    x = 99,239,913.65/15,858.63
  6. Step 6: Final answer
    x = 6,257.79

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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.