Home / 11,137.37-15,334.51-9,455.45

Finding the Fourth Proportional to 11,137.37, 15,334.51 and 9,455.45

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Solution

The fourth proportional to 11,137.37, 15,334.51 and 9,455.45 is: 13,018.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.37 : 15,334.51 = 9,455.45 : x
  2. Step 2: Convert to fraction form
    11,137.37/15,334.51 = 9,455.45/x
  3. Step 3: Cross multiply
    11,137.37x = 15,334.51 × 9,455.45
  4. Step 4: Simplify right side
    11,137.37x = 144,994,645.30
  5. Step 5: Solve for x
    x = 144,994,645.30/11,137.37
  6. Step 6: Final answer
    x = 13,018.75

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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.