Home / 11,665.12-17,499.75-4,645.21

Finding the Fourth Proportional to 11,665.12, 17,499.75 and 4,645.21

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Solution

The fourth proportional to 11,665.12, 17,499.75 and 4,645.21 is: 6,968.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,665.12 : 17,499.75 = 4,645.21 : x
  2. Step 2: Convert to fraction form
    11,665.12/17,499.75 = 4,645.21/x
  3. Step 3: Cross multiply
    11,665.12x = 17,499.75 × 4,645.21
  4. Step 4: Simplify right side
    11,665.12x = 81,290,013.70
  5. Step 5: Solve for x
    x = 81,290,013.70/11,665.12
  6. Step 6: Final answer
    x = 6,968.64

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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.