Home / 11,448.36-15,789.06-7,905.96

Finding the Fourth Proportional to 11,448.36, 15,789.06 and 7,905.96

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Solution

The fourth proportional to 11,448.36, 15,789.06 and 7,905.96 is: 10,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.36 : 15,789.06 = 7,905.96 : x
  2. Step 2: Convert to fraction form
    11,448.36/15,789.06 = 7,905.96/x
  3. Step 3: Cross multiply
    11,448.36x = 15,789.06 × 7,905.96
  4. Step 4: Simplify right side
    11,448.36x = 124,827,676.80
  5. Step 5: Solve for x
    x = 124,827,676.80/11,448.36
  6. Step 6: Final answer
    x = 10,903.54

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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.