Home / 11,207.10-15,467.29-7,239.76

Finding the Fourth Proportional to 11,207.10, 15,467.29 and 7,239.76

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Solution

The fourth proportional to 11,207.10, 15,467.29 and 7,239.76 is: 9,991.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.10 : 15,467.29 = 7,239.76 : x
  2. Step 2: Convert to fraction form
    11,207.10/15,467.29 = 7,239.76/x
  3. Step 3: Cross multiply
    11,207.10x = 15,467.29 × 7,239.76
  4. Step 4: Simplify right side
    11,207.10x = 111,979,410.68
  5. Step 5: Solve for x
    x = 111,979,410.68/11,207.10
  6. Step 6: Final answer
    x = 9,991.82

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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.