Home / 10,120.09-15,180.27-3,546.46

Finding the Fourth Proportional to 10,120.09, 15,180.27 and 3,546.46

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Solution

The fourth proportional to 10,120.09, 15,180.27 and 3,546.46 is: 5,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.09 : 15,180.27 = 3,546.46 : x
  2. Step 2: Convert to fraction form
    10,120.09/15,180.27 = 3,546.46/x
  3. Step 3: Cross multiply
    10,120.09x = 15,180.27 × 3,546.46
  4. Step 4: Simplify right side
    10,120.09x = 53,836,220.34
  5. Step 5: Solve for x
    x = 53,836,220.34/10,120.09
  6. Step 6: Final answer
    x = 5,319.74

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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.