Home / 11,542.14-15,921.81-6,825.51

Finding the Fourth Proportional to 11,542.14, 15,921.81 and 6,825.51

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Solution

The fourth proportional to 11,542.14, 15,921.81 and 6,825.51 is: 9,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,542.14 : 15,921.81 = 6,825.51 : x
  2. Step 2: Convert to fraction form
    11,542.14/15,921.81 = 6,825.51/x
  3. Step 3: Cross multiply
    11,542.14x = 15,921.81 × 6,825.51
  4. Step 4: Simplify right side
    11,542.14x = 108,674,473.37
  5. Step 5: Solve for x
    x = 108,674,473.37/11,542.14
  6. Step 6: Final answer
    x = 9,415.45

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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.