Home / 14,638.38-21,960.63-4,778.22

Finding the Fourth Proportional to 14,638.38, 21,960.63 and 4,778.22

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Solution

The fourth proportional to 14,638.38, 21,960.63 and 4,778.22 is: 7,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.38 : 21,960.63 = 4,778.22 : x
  2. Step 2: Convert to fraction form
    14,638.38/21,960.63 = 4,778.22/x
  3. Step 3: Cross multiply
    14,638.38x = 21,960.63 × 4,778.22
  4. Step 4: Simplify right side
    14,638.38x = 104,932,721.48
  5. Step 5: Solve for x
    x = 104,932,721.48/14,638.38
  6. Step 6: Final answer
    x = 7,168.33

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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.