Home / 18,563.05-25,618.36-10,605.10

Finding the Fourth Proportional to 18,563.05, 25,618.36 and 10,605.10

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Solution

The fourth proportional to 18,563.05, 25,618.36 and 10,605.10 is: 14,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.05 : 25,618.36 = 10,605.10 : x
  2. Step 2: Convert to fraction form
    18,563.05/25,618.36 = 10,605.10/x
  3. Step 3: Cross multiply
    18,563.05x = 25,618.36 × 10,605.10
  4. Step 4: Simplify right side
    18,563.05x = 271,685,141.54
  5. Step 5: Solve for x
    x = 271,685,141.54/18,563.05
  6. Step 6: Final answer
    x = 14,635.81

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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.