Home / 7,540.49-11,289.68-5,685.80

Finding the Fourth Proportional to 7,540.49, 11,289.68 and 5,685.80

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Solution

The fourth proportional to 7,540.49, 11,289.68 and 5,685.80 is: 8,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,540.49 : 11,289.68 = 5,685.80 : x
  2. Step 2: Convert to fraction form
    7,540.49/11,289.68 = 5,685.80/x
  3. Step 3: Cross multiply
    7,540.49x = 11,289.68 × 5,685.80
  4. Step 4: Simplify right side
    7,540.49x = 64,190,798.99
  5. Step 5: Solve for x
    x = 64,190,798.99/7,540.49
  6. Step 6: Final answer
    x = 8,512.81

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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.