Home / 15,865.76-23,796.34-4,178.98

Finding the Fourth Proportional to 15,865.76, 23,796.34 and 4,178.98

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Solution

The fourth proportional to 15,865.76, 23,796.34 and 4,178.98 is: 6,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.76 : 23,796.34 = 4,178.98 : x
  2. Step 2: Convert to fraction form
    15,865.76/23,796.34 = 4,178.98/x
  3. Step 3: Cross multiply
    15,865.76x = 23,796.34 × 4,178.98
  4. Step 4: Simplify right side
    15,865.76x = 99,444,428.93
  5. Step 5: Solve for x
    x = 99,444,428.93/15,865.76
  6. Step 6: Final answer
    x = 6,267.86

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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.