Home / 18,438.92-25,455.69-11,270.49

Finding the Fourth Proportional to 18,438.92, 25,455.69 and 11,270.49

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Solution

The fourth proportional to 18,438.92, 25,455.69 and 11,270.49 is: 15,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.92 : 25,455.69 = 11,270.49 : x
  2. Step 2: Convert to fraction form
    18,438.92/25,455.69 = 11,270.49/x
  3. Step 3: Cross multiply
    18,438.92x = 25,455.69 × 11,270.49
  4. Step 4: Simplify right side
    18,438.92x = 286,898,179.02
  5. Step 5: Solve for x
    x = 286,898,179.02/18,438.92
  6. Step 6: Final answer
    x = 15,559.38

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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.