Home / 7,411.19-11,104.43-5,215.30

Finding the Fourth Proportional to 7,411.19, 11,104.43 and 5,215.30

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Solution

The fourth proportional to 7,411.19, 11,104.43 and 5,215.30 is: 7,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.19 : 11,104.43 = 5,215.30 : x
  2. Step 2: Convert to fraction form
    7,411.19/11,104.43 = 5,215.30/x
  3. Step 3: Cross multiply
    7,411.19x = 11,104.43 × 5,215.30
  4. Step 4: Simplify right side
    7,411.19x = 57,912,879.94
  5. Step 5: Solve for x
    x = 57,912,879.94/7,411.19
  6. Step 6: Final answer
    x = 7,814.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.