Home / 11,118.48-15,356.10-7,575.54

Finding the Fourth Proportional to 11,118.48, 15,356.10 and 7,575.54

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Solution

The fourth proportional to 11,118.48, 15,356.10 and 7,575.54 is: 10,462.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.48 : 15,356.10 = 7,575.54 : x
  2. Step 2: Convert to fraction form
    11,118.48/15,356.10 = 7,575.54/x
  3. Step 3: Cross multiply
    11,118.48x = 15,356.10 × 7,575.54
  4. Step 4: Simplify right side
    11,118.48x = 116,330,749.79
  5. Step 5: Solve for x
    x = 116,330,749.79/11,118.48
  6. Step 6: Final answer
    x = 10,462.83

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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.