Home / 14,658.78-21,991.80-4,270.50

Finding the Fourth Proportional to 14,658.78, 21,991.80 and 4,270.50

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Solution

The fourth proportional to 14,658.78, 21,991.80 and 4,270.50 is: 6,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,658.78 : 21,991.80 = 4,270.50 : x
  2. Step 2: Convert to fraction form
    14,658.78/21,991.80 = 4,270.50/x
  3. Step 3: Cross multiply
    14,658.78x = 21,991.80 × 4,270.50
  4. Step 4: Simplify right side
    14,658.78x = 93,915,981.90
  5. Step 5: Solve for x
    x = 93,915,981.90/14,658.78
  6. Step 6: Final answer
    x = 6,406.81

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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.