Home / 11,477.89-17,216.84-7,581.39

Finding the Fourth Proportional to 11,477.89, 17,216.84 and 7,581.39

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Solution

The fourth proportional to 11,477.89, 17,216.84 and 7,581.39 is: 11,372.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.89 : 17,216.84 = 7,581.39 : x
  2. Step 2: Convert to fraction form
    11,477.89/17,216.84 = 7,581.39/x
  3. Step 3: Cross multiply
    11,477.89x = 17,216.84 × 7,581.39
  4. Step 4: Simplify right side
    11,477.89x = 130,527,578.61
  5. Step 5: Solve for x
    x = 130,527,578.61/11,477.89
  6. Step 6: Final answer
    x = 11,372.09

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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.