Home / 11,429.06-15,771.36-6,392.41

Finding the Fourth Proportional to 11,429.06, 15,771.36 and 6,392.41

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Solution

The fourth proportional to 11,429.06, 15,771.36 and 6,392.41 is: 8,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.06 : 15,771.36 = 6,392.41 : x
  2. Step 2: Convert to fraction form
    11,429.06/15,771.36 = 6,392.41/x
  3. Step 3: Cross multiply
    11,429.06x = 15,771.36 × 6,392.41
  4. Step 4: Simplify right side
    11,429.06x = 100,817,015.36
  5. Step 5: Solve for x
    x = 100,817,015.36/11,429.06
  6. Step 6: Final answer
    x = 8,821.11

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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.