Home / 14,639.69-21,963.03-4,778.99

Finding the Fourth Proportional to 14,639.69, 21,963.03 and 4,778.99

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Solution

The fourth proportional to 14,639.69, 21,963.03 and 4,778.99 is: 7,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.69 : 21,963.03 = 4,778.99 : x
  2. Step 2: Convert to fraction form
    14,639.69/21,963.03 = 4,778.99/x
  3. Step 3: Cross multiply
    14,639.69x = 21,963.03 × 4,778.99
  4. Step 4: Simplify right side
    14,639.69x = 104,960,990.92
  5. Step 5: Solve for x
    x = 104,960,990.92/14,639.69
  6. Step 6: Final answer
    x = 7,169.62

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1.5x scale

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.