Home / 11,921.51-17,825.33-10,875.84

Finding the Fourth Proportional to 11,921.51, 17,825.33 and 10,875.84

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Solution

The fourth proportional to 11,921.51, 17,825.33 and 10,875.84 is: 16,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.51 : 17,825.33 = 10,875.84 : x
  2. Step 2: Convert to fraction form
    11,921.51/17,825.33 = 10,875.84/x
  3. Step 3: Cross multiply
    11,921.51x = 17,825.33 × 10,875.84
  4. Step 4: Simplify right side
    11,921.51x = 193,865,397.37
  5. Step 5: Solve for x
    x = 193,865,397.37/11,921.51
  6. Step 6: Final answer
    x = 16,261.81

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1.5x scale

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.