Home / 11,640.34-17,460.68-3,320.36

Finding the Fourth Proportional to 11,640.34, 17,460.68 and 3,320.36

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Solution

The fourth proportional to 11,640.34, 17,460.68 and 3,320.36 is: 4,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.34 : 17,460.68 = 3,320.36 : x
  2. Step 2: Convert to fraction form
    11,640.34/17,460.68 = 3,320.36/x
  3. Step 3: Cross multiply
    11,640.34x = 17,460.68 × 3,320.36
  4. Step 4: Simplify right side
    11,640.34x = 57,975,723.69
  5. Step 5: Solve for x
    x = 57,975,723.69/11,640.34
  6. Step 6: Final answer
    x = 4,980.59

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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.