Home / 13,600.58-18,768.78-7,632.36

Finding the Fourth Proportional to 13,600.58, 18,768.78 and 7,632.36

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Solution

The fourth proportional to 13,600.58, 18,768.78 and 7,632.36 is: 10,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.58 : 18,768.78 = 7,632.36 : x
  2. Step 2: Convert to fraction form
    13,600.58/18,768.78 = 7,632.36/x
  3. Step 3: Cross multiply
    13,600.58x = 18,768.78 × 7,632.36
  4. Step 4: Simplify right side
    13,600.58x = 143,250,085.72
  5. Step 5: Solve for x
    x = 143,250,085.72/13,600.58
  6. Step 6: Final answer
    x = 10,532.65

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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.