Home / 9,379.35-12,944.63-5,400.38

Finding the Fourth Proportional to 9,379.35, 12,944.63 and 5,400.38

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Solution

The fourth proportional to 9,379.35, 12,944.63 and 5,400.38 is: 7,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.35 : 12,944.63 = 5,400.38 : x
  2. Step 2: Convert to fraction form
    9,379.35/12,944.63 = 5,400.38/x
  3. Step 3: Cross multiply
    9,379.35x = 12,944.63 × 5,400.38
  4. Step 4: Simplify right side
    9,379.35x = 69,905,829.23
  5. Step 5: Solve for x
    x = 69,905,829.23/9,379.35
  6. Step 6: Final answer
    x = 7,453.16

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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.