Home / 18,165.74-25,068.83-10,993.28

Finding the Fourth Proportional to 18,165.74, 25,068.83 and 10,993.28

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Solution

The fourth proportional to 18,165.74, 25,068.83 and 10,993.28 is: 15,170.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.74 : 25,068.83 = 10,993.28 : x
  2. Step 2: Convert to fraction form
    18,165.74/25,068.83 = 10,993.28/x
  3. Step 3: Cross multiply
    18,165.74x = 25,068.83 × 10,993.28
  4. Step 4: Simplify right side
    18,165.74x = 275,588,487.15
  5. Step 5: Solve for x
    x = 275,588,487.15/18,165.74
  6. Step 6: Final answer
    x = 15,170.79

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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.