Home / 10,120.47-15,182.33-3,546.51

Finding the Fourth Proportional to 10,120.47, 15,182.33 and 3,546.51

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Solution

The fourth proportional to 10,120.47, 15,182.33 and 3,546.51 is: 5,320.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.47 : 15,182.33 = 3,546.51 : x
  2. Step 2: Convert to fraction form
    10,120.47/15,182.33 = 3,546.51/x
  3. Step 3: Cross multiply
    10,120.47x = 15,182.33 × 3,546.51
  4. Step 4: Simplify right side
    10,120.47x = 53,844,267.44
  5. Step 5: Solve for x
    x = 53,844,267.44/10,120.47
  6. Step 6: Final answer
    x = 5,320.33

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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.