Home / 15,890.61-23,835.93-8,104.89

Finding the Fourth Proportional to 15,890.61, 23,835.93 and 8,104.89

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Solution

The fourth proportional to 15,890.61, 23,835.93 and 8,104.89 is: 12,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.61 : 23,835.93 = 8,104.89 : x
  2. Step 2: Convert to fraction form
    15,890.61/23,835.93 = 8,104.89/x
  3. Step 3: Cross multiply
    15,890.61x = 23,835.93 × 8,104.89
  4. Step 4: Simplify right side
    15,890.61x = 193,187,590.70
  5. Step 5: Solve for x
    x = 193,187,590.70/15,890.61
  6. Step 6: Final answer
    x = 12,157.34

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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.