Home / 9,380.19-12,942.75-5,400.26

Finding the Fourth Proportional to 9,380.19, 12,942.75 and 5,400.26

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Solution

The fourth proportional to 9,380.19, 12,942.75 and 5,400.26 is: 7,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,380.19 : 12,942.75 = 5,400.26 : x
  2. Step 2: Convert to fraction form
    9,380.19/12,942.75 = 5,400.26/x
  3. Step 3: Cross multiply
    9,380.19x = 12,942.75 × 5,400.26
  4. Step 4: Simplify right side
    9,380.19x = 69,894,215.12
  5. Step 5: Solve for x
    x = 69,894,215.12/9,380.19
  6. Step 6: Final answer
    x = 7,451.26

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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.