Home / 11,330.73-15,638.64-7,239.91

Finding the Fourth Proportional to 11,330.73, 15,638.64 and 7,239.91

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Solution

The fourth proportional to 11,330.73, 15,638.64 and 7,239.91 is: 9,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,330.73 : 15,638.64 = 7,239.91 : x
  2. Step 2: Convert to fraction form
    11,330.73/15,638.64 = 7,239.91/x
  3. Step 3: Cross multiply
    11,330.73x = 15,638.64 × 7,239.91
  4. Step 4: Simplify right side
    11,330.73x = 113,222,346.12
  5. Step 5: Solve for x
    x = 113,222,346.12/11,330.73
  6. Step 6: Final answer
    x = 9,992.50

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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.