Home / 11,125.48-15,365.76-7,582.54

Finding the Fourth Proportional to 11,125.48, 15,365.76 and 7,582.54

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Solution

The fourth proportional to 11,125.48, 15,365.76 and 7,582.54 is: 10,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.48 : 15,365.76 = 7,582.54 : x
  2. Step 2: Convert to fraction form
    11,125.48/15,365.76 = 7,582.54/x
  3. Step 3: Cross multiply
    11,125.48x = 15,365.76 × 7,582.54
  4. Step 4: Simplify right side
    11,125.48x = 116,511,489.83
  5. Step 5: Solve for x
    x = 116,511,489.83/11,125.48
  6. Step 6: Final answer
    x = 10,472.49

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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.