Home / 9,875.44-13,627.92-5,399.20

Finding the Fourth Proportional to 9,875.44, 13,627.92 and 5,399.20

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Solution

The fourth proportional to 9,875.44, 13,627.92 and 5,399.20 is: 7,450.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,875.44 : 13,627.92 = 5,399.20 : x
  2. Step 2: Convert to fraction form
    9,875.44/13,627.92 = 5,399.20/x
  3. Step 3: Cross multiply
    9,875.44x = 13,627.92 × 5,399.20
  4. Step 4: Simplify right side
    9,875.44x = 73,579,865.66
  5. Step 5: Solve for x
    x = 73,579,865.66/9,875.44
  6. Step 6: Final answer
    x = 7,450.79

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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.