Home / 13,755.40-18,963.64-9,448.36

Finding the Fourth Proportional to 13,755.40, 18,963.64 and 9,448.36

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Solution

The fourth proportional to 13,755.40, 18,963.64 and 9,448.36 is: 13,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.40 : 18,963.64 = 9,448.36 : x
  2. Step 2: Convert to fraction form
    13,755.40/18,963.64 = 9,448.36/x
  3. Step 3: Cross multiply
    13,755.40x = 18,963.64 × 9,448.36
  4. Step 4: Simplify right side
    13,755.40x = 179,175,155.57
  5. Step 5: Solve for x
    x = 179,175,155.57/13,755.40
  6. Step 6: Final answer
    x = 13,025.81

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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.