Home / 11,497.11-15,865.47-7,028.34

Finding the Fourth Proportional to 11,497.11, 15,865.47 and 7,028.34

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Solution

The fourth proportional to 11,497.11, 15,865.47 and 7,028.34 is: 9,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,497.11 : 15,865.47 = 7,028.34 : x
  2. Step 2: Convert to fraction form
    11,497.11/15,865.47 = 7,028.34/x
  3. Step 3: Cross multiply
    11,497.11x = 15,865.47 × 7,028.34
  4. Step 4: Simplify right side
    11,497.11x = 111,507,917.42
  5. Step 5: Solve for x
    x = 111,507,917.42/11,497.11
  6. Step 6: Final answer
    x = 9,698.78

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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.