Home / 11,381.96-15,707.17-6,346.50

Finding the Fourth Proportional to 11,381.96, 15,707.17 and 6,346.50

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Solution

The fourth proportional to 11,381.96, 15,707.17 and 6,346.50 is: 8,758.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.96 : 15,707.17 = 6,346.50 : x
  2. Step 2: Convert to fraction form
    11,381.96/15,707.17 = 6,346.50/x
  3. Step 3: Cross multiply
    11,381.96x = 15,707.17 × 6,346.50
  4. Step 4: Simplify right side
    11,381.96x = 99,685,554.41
  5. Step 5: Solve for x
    x = 99,685,554.41/11,381.96
  6. Step 6: Final answer
    x = 8,758.21

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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.