Home / 10,355.92-14,291.76-6,381.28

Finding the Fourth Proportional to 10,355.92, 14,291.76 and 6,381.28

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Solution

The fourth proportional to 10,355.92, 14,291.76 and 6,381.28 is: 8,806.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.92 : 14,291.76 = 6,381.28 : x
  2. Step 2: Convert to fraction form
    10,355.92/14,291.76 = 6,381.28/x
  3. Step 3: Cross multiply
    10,355.92x = 14,291.76 × 6,381.28
  4. Step 4: Simplify right side
    10,355.92x = 91,199,722.25
  5. Step 5: Solve for x
    x = 91,199,722.25/10,355.92
  6. Step 6: Final answer
    x = 8,806.53

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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.