Home / 11,392.29-15,721.37-6,676.57

Finding the Fourth Proportional to 11,392.29, 15,721.37 and 6,676.57

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Solution

The fourth proportional to 11,392.29, 15,721.37 and 6,676.57 is: 9,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.29 : 15,721.37 = 6,676.57 : x
  2. Step 2: Convert to fraction form
    11,392.29/15,721.37 = 6,676.57/x
  3. Step 3: Cross multiply
    11,392.29x = 15,721.37 × 6,676.57
  4. Step 4: Simplify right side
    11,392.29x = 104,964,827.30
  5. Step 5: Solve for x
    x = 104,964,827.30/11,392.29
  6. Step 6: Final answer
    x = 9,213.67

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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.