Home / 7,680.04-11,502.19-7,469.78

Finding the Fourth Proportional to 7,680.04, 11,502.19 and 7,469.78

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Solution

The fourth proportional to 7,680.04, 11,502.19 and 7,469.78 is: 11,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.04 : 11,502.19 = 7,469.78 : x
  2. Step 2: Convert to fraction form
    7,680.04/11,502.19 = 7,469.78/x
  3. Step 3: Cross multiply
    7,680.04x = 11,502.19 × 7,469.78
  4. Step 4: Simplify right side
    7,680.04x = 85,918,810.14
  5. Step 5: Solve for x
    x = 85,918,810.14/7,680.04
  6. Step 6: Final answer
    x = 11,187.28

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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.