Home / 9,856.05-13,601.09-5,379.86

Finding the Fourth Proportional to 9,856.05, 13,601.09 and 5,379.86

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Solution

The fourth proportional to 9,856.05, 13,601.09 and 5,379.86 is: 7,424.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,856.05 : 13,601.09 = 5,379.86 : x
  2. Step 2: Convert to fraction form
    9,856.05/13,601.09 = 5,379.86/x
  3. Step 3: Cross multiply
    9,856.05x = 13,601.09 × 5,379.86
  4. Step 4: Simplify right side
    9,856.05x = 73,171,865.14
  5. Step 5: Solve for x
    x = 73,171,865.14/9,856.05
  6. Step 6: Final answer
    x = 7,424.06

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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.