Home / 13,600.80-18,769.11-7,632.45

Finding the Fourth Proportional to 13,600.80, 18,769.11 and 7,632.45

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Solution

The fourth proportional to 13,600.80, 18,769.11 and 7,632.45 is: 10,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.80 : 18,769.11 = 7,632.45 : x
  2. Step 2: Convert to fraction form
    13,600.80/18,769.11 = 7,632.45/x
  3. Step 3: Cross multiply
    13,600.80x = 18,769.11 × 7,632.45
  4. Step 4: Simplify right side
    13,600.80x = 143,254,293.62
  5. Step 5: Solve for x
    x = 143,254,293.62/13,600.80
  6. Step 6: Final answer
    x = 10,532.78

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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.