Home / 18,807.72-25,962.92-13,164.63

Finding the Fourth Proportional to 18,807.72, 25,962.92 and 13,164.63

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Solution

The fourth proportional to 18,807.72, 25,962.92 and 13,164.63 is: 18,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.72 : 25,962.92 = 13,164.63 : x
  2. Step 2: Convert to fraction form
    18,807.72/25,962.92 = 13,164.63/x
  3. Step 3: Cross multiply
    18,807.72x = 25,962.92 × 13,164.63
  4. Step 4: Simplify right side
    18,807.72x = 341,792,121.70
  5. Step 5: Solve for x
    x = 341,792,121.70/18,807.72
  6. Step 6: Final answer
    x = 18,172.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.