Home / 11,429.19-15,771.54-6,392.54

Finding the Fourth Proportional to 11,429.19, 15,771.54 and 6,392.54

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Solution

The fourth proportional to 11,429.19, 15,771.54 and 6,392.54 is: 8,821.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.19 : 15,771.54 = 6,392.54 : x
  2. Step 2: Convert to fraction form
    11,429.19/15,771.54 = 6,392.54/x
  3. Step 3: Cross multiply
    11,429.19x = 15,771.54 × 6,392.54
  4. Step 4: Simplify right side
    11,429.19x = 100,820,097.48
  5. Step 5: Solve for x
    x = 100,820,097.48/11,429.19
  6. Step 6: Final answer
    x = 8,821.28

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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.