Home / 11,392.30-15,721.33-6,356.53

Finding the Fourth Proportional to 11,392.30, 15,721.33 and 6,356.53

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Solution

The fourth proportional to 11,392.30, 15,721.33 and 6,356.53 is: 8,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.30 : 15,721.33 = 6,356.53 : x
  2. Step 2: Convert to fraction form
    11,392.30/15,721.33 = 6,356.53/x
  3. Step 3: Cross multiply
    11,392.30x = 15,721.33 × 6,356.53
  4. Step 4: Simplify right side
    11,392.30x = 99,933,074.00
  5. Step 5: Solve for x
    x = 99,933,074.00/11,392.30
  6. Step 6: Final answer
    x = 8,771.98

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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.