Home / 13,627.54-18,813.75-8,851.78

Finding the Fourth Proportional to 13,627.54, 18,813.75 and 8,851.78

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Solution

The fourth proportional to 13,627.54, 18,813.75 and 8,851.78 is: 12,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.54 : 18,813.75 = 8,851.78 : x
  2. Step 2: Convert to fraction form
    13,627.54/18,813.75 = 8,851.78/x
  3. Step 3: Cross multiply
    13,627.54x = 18,813.75 × 8,851.78
  4. Step 4: Simplify right side
    13,627.54x = 166,535,081.91
  5. Step 5: Solve for x
    x = 166,535,081.91/13,627.54
  6. Step 6: Final answer
    x = 12,220.48

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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.