Home / 13,600.78-18,769.42-7,632.93

Finding the Fourth Proportional to 13,600.78, 18,769.42 and 7,632.93

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Solution

The fourth proportional to 13,600.78, 18,769.42 and 7,632.93 is: 10,533.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.78 : 18,769.42 = 7,632.93 : x
  2. Step 2: Convert to fraction form
    13,600.78/18,769.42 = 7,632.93/x
  3. Step 3: Cross multiply
    13,600.78x = 18,769.42 × 7,632.93
  4. Step 4: Simplify right side
    13,600.78x = 143,265,669.00
  5. Step 5: Solve for x
    x = 143,265,669.00/13,600.78
  6. Step 6: Final answer
    x = 10,533.64

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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.