Home / 7,367.63-10,171.92-5,128.68

Finding the Fourth Proportional to 7,367.63, 10,171.92 and 5,128.68

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Solution

The fourth proportional to 7,367.63, 10,171.92 and 5,128.68 is: 7,080.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,367.63 : 10,171.92 = 5,128.68 : x
  2. Step 2: Convert to fraction form
    7,367.63/10,171.92 = 5,128.68/x
  3. Step 3: Cross multiply
    7,367.63x = 10,171.92 × 5,128.68
  4. Step 4: Simplify right side
    7,367.63x = 52,168,541.58
  5. Step 5: Solve for x
    x = 52,168,541.58/7,367.63
  6. Step 6: Final answer
    x = 7,080.78

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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.