Home / 10,120.45-15,187.42-3,546.63

Finding the Fourth Proportional to 10,120.45, 15,187.42 and 3,546.63

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Solution

The fourth proportional to 10,120.45, 15,187.42 and 3,546.63 is: 5,322.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.45 : 15,187.42 = 3,546.63 : x
  2. Step 2: Convert to fraction form
    10,120.45/15,187.42 = 3,546.63/x
  3. Step 3: Cross multiply
    10,120.45x = 15,187.42 × 3,546.63
  4. Step 4: Simplify right side
    10,120.45x = 53,864,159.39
  5. Step 5: Solve for x
    x = 53,864,159.39/10,120.45
  6. Step 6: Final answer
    x = 5,322.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.