Home / 19,512.68-26,928.42-11,129

Finding the Fourth Proportional to 19,512.68, 26,928.42 and 11,129

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Solution

The fourth proportional to 19,512.68, 26,928.42 and 11,129 is: 15,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,512.68 : 26,928.42 = 11,129 : x
  2. Step 2: Convert to fraction form
    19,512.68/26,928.42 = 11,129/x
  3. Step 3: Cross multiply
    19,512.68x = 26,928.42 × 11,129
  4. Step 4: Simplify right side
    19,512.68x = 299,686,386.18
  5. Step 5: Solve for x
    x = 299,686,386.18/19,512.68
  6. Step 6: Final answer
    x = 15,358.55

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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.