Home / 11,603.44-16,004.55-7,129.71

Finding the Fourth Proportional to 11,603.44, 16,004.55 and 7,129.71

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Solution

The fourth proportional to 11,603.44, 16,004.55 and 7,129.71 is: 9,833.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.44 : 16,004.55 = 7,129.71 : x
  2. Step 2: Convert to fraction form
    11,603.44/16,004.55 = 7,129.71/x
  3. Step 3: Cross multiply
    11,603.44x = 16,004.55 × 7,129.71
  4. Step 4: Simplify right side
    11,603.44x = 114,107,800.18
  5. Step 5: Solve for x
    x = 114,107,800.18/11,603.44
  6. Step 6: Final answer
    x = 9,833.96

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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.