Home / 11,639.52-17,460.32-3,319.60

Finding the Fourth Proportional to 11,639.52, 17,460.32 and 3,319.60

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Solution

The fourth proportional to 11,639.52, 17,460.32 and 3,319.60 is: 4,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.52 : 17,460.32 = 3,319.60 : x
  2. Step 2: Convert to fraction form
    11,639.52/17,460.32 = 3,319.60/x
  3. Step 3: Cross multiply
    11,639.52x = 17,460.32 × 3,319.60
  4. Step 4: Simplify right side
    11,639.52x = 57,961,278.27
  5. Step 5: Solve for x
    x = 57,961,278.27/11,639.52
  6. Step 6: Final answer
    x = 4,979.70

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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.