Home / 13,361.36-18,444.78-9,535.90

Finding the Fourth Proportional to 13,361.36, 18,444.78 and 9,535.90

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Solution

The fourth proportional to 13,361.36, 18,444.78 and 9,535.90 is: 13,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.36 : 18,444.78 = 9,535.90 : x
  2. Step 2: Convert to fraction form
    13,361.36/18,444.78 = 9,535.90/x
  3. Step 3: Cross multiply
    13,361.36x = 18,444.78 × 9,535.90
  4. Step 4: Simplify right side
    13,361.36x = 175,887,577.60
  5. Step 5: Solve for x
    x = 175,887,577.60/13,361.36
  6. Step 6: Final answer
    x = 13,163.90

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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.