Home / 11,391.82-15,717.04-6,355.24

Finding the Fourth Proportional to 11,391.82, 15,717.04 and 6,355.24

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Solution

The fourth proportional to 11,391.82, 15,717.04 and 6,355.24 is: 8,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.82 : 15,717.04 = 6,355.24 : x
  2. Step 2: Convert to fraction form
    11,391.82/15,717.04 = 6,355.24/x
  3. Step 3: Cross multiply
    11,391.82x = 15,717.04 × 6,355.24
  4. Step 4: Simplify right side
    11,391.82x = 99,885,561.29
  5. Step 5: Solve for x
    x = 99,885,561.29/11,391.82
  6. Step 6: Final answer
    x = 8,768.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.