Home / 13,419.57-20,087.43-9,235.11

Finding the Fourth Proportional to 13,419.57, 20,087.43 and 9,235.11

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Solution

The fourth proportional to 13,419.57, 20,087.43 and 9,235.11 is: 13,823.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.57 : 20,087.43 = 9,235.11 : x
  2. Step 2: Convert to fraction form
    13,419.57/20,087.43 = 9,235.11/x
  3. Step 3: Cross multiply
    13,419.57x = 20,087.43 × 9,235.11
  4. Step 4: Simplify right side
    13,419.57x = 185,509,625.67
  5. Step 5: Solve for x
    x = 185,509,625.67/13,419.57
  6. Step 6: Final answer
    x = 13,823.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.