Home / 7,388.11-11,076.40-3,688.48

Finding the Fourth Proportional to 7,388.11, 11,076.40 and 3,688.48

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Solution

The fourth proportional to 7,388.11, 11,076.40 and 3,688.48 is: 5,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.11 : 11,076.40 = 3,688.48 : x
  2. Step 2: Convert to fraction form
    7,388.11/11,076.40 = 3,688.48/x
  3. Step 3: Cross multiply
    7,388.11x = 11,076.40 × 3,688.48
  4. Step 4: Simplify right side
    7,388.11x = 40,855,079.87
  5. Step 5: Solve for x
    x = 40,855,079.87/7,388.11
  6. Step 6: Final answer
    x = 5,529.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.