Home / 9,379.18-12,944.58-5,400.20

Finding the Fourth Proportional to 9,379.18, 12,944.58 and 5,400.20

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Solution

The fourth proportional to 9,379.18, 12,944.58 and 5,400.20 is: 7,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.18 : 12,944.58 = 5,400.20 : x
  2. Step 2: Convert to fraction form
    9,379.18/12,944.58 = 5,400.20/x
  3. Step 3: Cross multiply
    9,379.18x = 12,944.58 × 5,400.20
  4. Step 4: Simplify right side
    9,379.18x = 69,903,320.92
  5. Step 5: Solve for x
    x = 69,903,320.92/9,379.18
  6. Step 6: Final answer
    x = 7,453.03

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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.