Home / 19,146.78-28,720.17-11,351.34

Finding the Fourth Proportional to 19,146.78, 28,720.17 and 11,351.34

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Solution

The fourth proportional to 19,146.78, 28,720.17 and 11,351.34 is: 17,027.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.78 : 28,720.17 = 11,351.34 : x
  2. Step 2: Convert to fraction form
    19,146.78/28,720.17 = 11,351.34/x
  3. Step 3: Cross multiply
    19,146.78x = 28,720.17 × 11,351.34
  4. Step 4: Simplify right side
    19,146.78x = 326,012,414.53
  5. Step 5: Solve for x
    x = 326,012,414.53/19,146.78
  6. Step 6: Final answer
    x = 17,027.01

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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.