Home / 15,162.45-20,907.46-10,383.18

Finding the Fourth Proportional to 15,162.45, 20,907.46 and 10,383.18

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Solution

The fourth proportional to 15,162.45, 20,907.46 and 10,383.18 is: 14,317.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,162.45 : 20,907.46 = 10,383.18 : x
  2. Step 2: Convert to fraction form
    15,162.45/20,907.46 = 10,383.18/x
  3. Step 3: Cross multiply
    15,162.45x = 20,907.46 × 10,383.18
  4. Step 4: Simplify right side
    15,162.45x = 217,085,764.07
  5. Step 5: Solve for x
    x = 217,085,764.07/15,162.45
  6. Step 6: Final answer
    x = 14,317.33

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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.