Home / 7,609.90-11,399.12-4,480.26

Finding the Fourth Proportional to 7,609.90, 11,399.12 and 4,480.26

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Solution

The fourth proportional to 7,609.90, 11,399.12 and 4,480.26 is: 6,711.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,609.90 : 11,399.12 = 4,480.26 : x
  2. Step 2: Convert to fraction form
    7,609.90/11,399.12 = 4,480.26/x
  3. Step 3: Cross multiply
    7,609.90x = 11,399.12 × 4,480.26
  4. Step 4: Simplify right side
    7,609.90x = 51,071,021.37
  5. Step 5: Solve for x
    x = 51,071,021.37/7,609.90
  6. Step 6: Final answer
    x = 6,711.13

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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.