Home / 11,308.48-15,610.80-9,790

Finding the Fourth Proportional to 11,308.48, 15,610.80 and 9,790

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Solution

The fourth proportional to 11,308.48, 15,610.80 and 9,790 is: 13,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.48 : 15,610.80 = 9,790 : x
  2. Step 2: Convert to fraction form
    11,308.48/15,610.80 = 9,790/x
  3. Step 3: Cross multiply
    11,308.48x = 15,610.80 × 9,790
  4. Step 4: Simplify right side
    11,308.48x = 152,829,732
  5. Step 5: Solve for x
    x = 152,829,732/11,308.48
  6. Step 6: Final answer
    x = 13,514.61

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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.