Home / 11,965.20-17,953.08-4,179.60

Finding the Fourth Proportional to 11,965.20, 17,953.08 and 4,179.60

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Solution

The fourth proportional to 11,965.20, 17,953.08 and 4,179.60 is: 6,271.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,965.20 : 17,953.08 = 4,179.60 : x
  2. Step 2: Convert to fraction form
    11,965.20/17,953.08 = 4,179.60/x
  3. Step 3: Cross multiply
    11,965.20x = 17,953.08 × 4,179.60
  4. Step 4: Simplify right side
    11,965.20x = 75,036,693.17
  5. Step 5: Solve for x
    x = 75,036,693.17/11,965.20
  6. Step 6: Final answer
    x = 6,271.24

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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.