Home / 11,984.52-17,980.32-6,145.20

Finding the Fourth Proportional to 11,984.52, 17,980.32 and 6,145.20

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Solution

The fourth proportional to 11,984.52, 17,980.32 and 6,145.20 is: 9,219.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.52 : 17,980.32 = 6,145.20 : x
  2. Step 2: Convert to fraction form
    11,984.52/17,980.32 = 6,145.20/x
  3. Step 3: Cross multiply
    11,984.52x = 17,980.32 × 6,145.20
  4. Step 4: Simplify right side
    11,984.52x = 110,492,662.46
  5. Step 5: Solve for x
    x = 110,492,662.46/11,984.52
  6. Step 6: Final answer
    x = 9,219.62

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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.