Home / 13,600.71-20,395.62-4,237.65

Finding the Fourth Proportional to 13,600.71, 20,395.62 and 4,237.65

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Solution

The fourth proportional to 13,600.71, 20,395.62 and 4,237.65 is: 6,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600.71 : 20,395.62 = 4,237.65 : x
  2. Step 2: Convert to fraction form
    13,600.71/20,395.62 = 4,237.65/x
  3. Step 3: Cross multiply
    13,600.71x = 20,395.62 × 4,237.65
  4. Step 4: Simplify right side
    13,600.71x = 86,429,499.09
  5. Step 5: Solve for x
    x = 86,429,499.09/13,600.71
  6. Step 6: Final answer
    x = 6,354.78

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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.