Home / 13,480.83-18,603.93-7,512.45

Finding the Fourth Proportional to 13,480.83, 18,603.93 and 7,512.45

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Solution

The fourth proportional to 13,480.83, 18,603.93 and 7,512.45 is: 10,367.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.83 : 18,603.93 = 7,512.45 : x
  2. Step 2: Convert to fraction form
    13,480.83/18,603.93 = 7,512.45/x
  3. Step 3: Cross multiply
    13,480.83x = 18,603.93 × 7,512.45
  4. Step 4: Simplify right side
    13,480.83x = 139,761,010.08
  5. Step 5: Solve for x
    x = 139,761,010.08/13,480.83
  6. Step 6: Final answer
    x = 10,367.39

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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.