Home / 13,480.86-18,603.54-7,512.60

Finding the Fourth Proportional to 13,480.86, 18,603.54 and 7,512.60

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Solution

The fourth proportional to 13,480.86, 18,603.54 and 7,512.60 is: 10,367.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.86 : 18,603.54 = 7,512.60 : x
  2. Step 2: Convert to fraction form
    13,480.86/18,603.54 = 7,512.60/x
  3. Step 3: Cross multiply
    13,480.86x = 18,603.54 × 7,512.60
  4. Step 4: Simplify right side
    13,480.86x = 139,760,954.60
  5. Step 5: Solve for x
    x = 139,760,954.60/13,480.86
  6. Step 6: Final answer
    x = 10,367.36

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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.