Home / 11,673.42-17,509.57-5,431.20

Finding the Fourth Proportional to 11,673.42, 17,509.57 and 5,431.20

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Solution

The fourth proportional to 11,673.42, 17,509.57 and 5,431.20 is: 8,146.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,673.42 : 17,509.57 = 5,431.20 : x
  2. Step 2: Convert to fraction form
    11,673.42/17,509.57 = 5,431.20/x
  3. Step 3: Cross multiply
    11,673.42x = 17,509.57 × 5,431.20
  4. Step 4: Simplify right side
    11,673.42x = 95,097,995.84
  5. Step 5: Solve for x
    x = 95,097,995.84/11,673.42
  6. Step 6: Final answer
    x = 8,146.54

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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.