Home / 13,648.91-18,829.19-9,866.07

Finding the Fourth Proportional to 13,648.91, 18,829.19 and 9,866.07

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Solution

The fourth proportional to 13,648.91, 18,829.19 and 9,866.07 is: 13,610.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.91 : 18,829.19 = 9,866.07 : x
  2. Step 2: Convert to fraction form
    13,648.91/18,829.19 = 9,866.07/x
  3. Step 3: Cross multiply
    13,648.91x = 18,829.19 × 9,866.07
  4. Step 4: Simplify right side
    13,648.91x = 185,770,131.25
  5. Step 5: Solve for x
    x = 185,770,131.25/13,648.91
  6. Step 6: Final answer
    x = 13,610.63

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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.