Home / 19,112.72-26,355.39-13,445.60

Finding the Fourth Proportional to 19,112.72, 26,355.39 and 13,445.60

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Solution

The fourth proportional to 19,112.72, 26,355.39 and 13,445.60 is: 18,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.72 : 26,355.39 = 13,445.60 : x
  2. Step 2: Convert to fraction form
    19,112.72/26,355.39 = 13,445.60/x
  3. Step 3: Cross multiply
    19,112.72x = 26,355.39 × 13,445.60
  4. Step 4: Simplify right side
    19,112.72x = 354,364,031.78
  5. Step 5: Solve for x
    x = 354,364,031.78/19,112.72
  6. Step 6: Final answer
    x = 18,540.74

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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.