Home / 19,406.85-26,772.66-11,445.36

Finding the Fourth Proportional to 19,406.85, 26,772.66 and 11,445.36

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Solution

The fourth proportional to 19,406.85, 26,772.66 and 11,445.36 is: 15,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.85 : 26,772.66 = 11,445.36 : x
  2. Step 2: Convert to fraction form
    19,406.85/26,772.66 = 11,445.36/x
  3. Step 3: Cross multiply
    19,406.85x = 26,772.66 × 11,445.36
  4. Step 4: Simplify right side
    19,406.85x = 306,422,731.86
  5. Step 5: Solve for x
    x = 306,422,731.86/19,406.85
  6. Step 6: Final answer
    x = 15,789.41

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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.