Home / 19,207.31-26,508.21-11,142.75

Finding the Fourth Proportional to 19,207.31, 26,508.21 and 11,142.75

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Solution

The fourth proportional to 19,207.31, 26,508.21 and 11,142.75 is: 15,378.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.31 : 26,508.21 = 11,142.75 : x
  2. Step 2: Convert to fraction form
    19,207.31/26,508.21 = 11,142.75/x
  3. Step 3: Cross multiply
    19,207.31x = 26,508.21 × 11,142.75
  4. Step 4: Simplify right side
    19,207.31x = 295,374,356.98
  5. Step 5: Solve for x
    x = 295,374,356.98/19,207.31
  6. Step 6: Final answer
    x = 15,378.23

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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.