Home / 12,038.36-18,147.77-11,235.56

Finding the Fourth Proportional to 12,038.36, 18,147.77 and 11,235.56

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Solution

The fourth proportional to 12,038.36, 18,147.77 and 11,235.56 is: 16,937.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.36 : 18,147.77 = 11,235.56 : x
  2. Step 2: Convert to fraction form
    12,038.36/18,147.77 = 11,235.56/x
  3. Step 3: Cross multiply
    12,038.36x = 18,147.77 × 11,235.56
  4. Step 4: Simplify right side
    12,038.36x = 203,900,211.78
  5. Step 5: Solve for x
    x = 203,900,211.78/12,038.36
  6. Step 6: Final answer
    x = 16,937.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.