Home / 18,763.40-25,905.21-13,107.62

Finding the Fourth Proportional to 18,763.40, 25,905.21 and 13,107.62

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Solution

The fourth proportional to 18,763.40, 25,905.21 and 13,107.62 is: 18,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.40 : 25,905.21 = 13,107.62 : x
  2. Step 2: Convert to fraction form
    18,763.40/25,905.21 = 13,107.62/x
  3. Step 3: Cross multiply
    18,763.40x = 25,905.21 × 13,107.62
  4. Step 4: Simplify right side
    18,763.40x = 339,555,519.17
  5. Step 5: Solve for x
    x = 339,555,519.17/18,763.40
  6. Step 6: Final answer
    x = 18,096.70

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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.