Home / 7,638.37-11,434.51-6,908.29

Finding the Fourth Proportional to 7,638.37, 11,434.51 and 6,908.29

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Solution

The fourth proportional to 7,638.37, 11,434.51 and 6,908.29 is: 10,341.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.37 : 11,434.51 = 6,908.29 : x
  2. Step 2: Convert to fraction form
    7,638.37/11,434.51 = 6,908.29/x
  3. Step 3: Cross multiply
    7,638.37x = 11,434.51 × 6,908.29
  4. Step 4: Simplify right side
    7,638.37x = 78,992,911.09
  5. Step 5: Solve for x
    x = 78,992,911.09/7,638.37
  6. Step 6: Final answer
    x = 10,341.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.