Home / 8,392.38-11,581.49-4,615.79

Finding the Fourth Proportional to 8,392.38, 11,581.49 and 4,615.79

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Solution

The fourth proportional to 8,392.38, 11,581.49 and 4,615.79 is: 6,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.38 : 11,581.49 = 4,615.79 : x
  2. Step 2: Convert to fraction form
    8,392.38/11,581.49 = 4,615.79/x
  3. Step 3: Cross multiply
    8,392.38x = 11,581.49 × 4,615.79
  4. Step 4: Simplify right side
    8,392.38x = 53,457,644.74
  5. Step 5: Solve for x
    x = 53,457,644.74/8,392.38
  6. Step 6: Final answer
    x = 6,369.78

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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.