Home / 10,392.40-14,341.49-5,676.68

Finding the Fourth Proportional to 10,392.40, 14,341.49 and 5,676.68

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Solution

The fourth proportional to 10,392.40, 14,341.49 and 5,676.68 is: 7,833.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392.40 : 14,341.49 = 5,676.68 : x
  2. Step 2: Convert to fraction form
    10,392.40/14,341.49 = 5,676.68/x
  3. Step 3: Cross multiply
    10,392.40x = 14,341.49 × 5,676.68
  4. Step 4: Simplify right side
    10,392.40x = 81,412,049.45
  5. Step 5: Solve for x
    x = 81,412,049.45/10,392.40
  6. Step 6: Final answer
    x = 7,833.81

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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.