Home / 11,334.78-15,639.57-6,616.92

Finding the Fourth Proportional to 11,334.78, 15,639.57 and 6,616.92

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Solution

The fourth proportional to 11,334.78, 15,639.57 and 6,616.92 is: 9,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,334.78 : 15,639.57 = 6,616.92 : x
  2. Step 2: Convert to fraction form
    11,334.78/15,639.57 = 6,616.92/x
  3. Step 3: Cross multiply
    11,334.78x = 15,639.57 × 6,616.92
  4. Step 4: Simplify right side
    11,334.78x = 103,485,783.52
  5. Step 5: Solve for x
    x = 103,485,783.52/11,334.78
  6. Step 6: Final answer
    x = 9,129.93

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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.