Home / 11,434.06-17,138.79-7,472.86

Finding the Fourth Proportional to 11,434.06, 17,138.79 and 7,472.86

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Solution

The fourth proportional to 11,434.06, 17,138.79 and 7,472.86 is: 11,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.06 : 17,138.79 = 7,472.86 : x
  2. Step 2: Convert to fraction form
    11,434.06/17,138.79 = 7,472.86/x
  3. Step 3: Cross multiply
    11,434.06x = 17,138.79 × 7,472.86
  4. Step 4: Simplify right side
    11,434.06x = 128,075,735.39
  5. Step 5: Solve for x
    x = 128,075,735.39/11,434.06
  6. Step 6: Final answer
    x = 11,201.25

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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.