Home / 11,511.84-17,270.28-3,720.54

Finding the Fourth Proportional to 11,511.84, 17,270.28 and 3,720.54

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Solution

The fourth proportional to 11,511.84, 17,270.28 and 3,720.54 is: 5,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.84 : 17,270.28 = 3,720.54 : x
  2. Step 2: Convert to fraction form
    11,511.84/17,270.28 = 3,720.54/x
  3. Step 3: Cross multiply
    11,511.84x = 17,270.28 × 3,720.54
  4. Step 4: Simplify right side
    11,511.84x = 64,254,767.55
  5. Step 5: Solve for x
    x = 64,254,767.55/11,511.84
  6. Step 6: Final answer
    x = 5,581.62

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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.