Home / 13,653.01-20,479.38-6,255.37

Finding the Fourth Proportional to 13,653.01, 20,479.38 and 6,255.37

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Solution

The fourth proportional to 13,653.01, 20,479.38 and 6,255.37 is: 9,382.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.01 : 20,479.38 = 6,255.37 : x
  2. Step 2: Convert to fraction form
    13,653.01/20,479.38 = 6,255.37/x
  3. Step 3: Cross multiply
    13,653.01x = 20,479.38 × 6,255.37
  4. Step 4: Simplify right side
    13,653.01x = 128,106,099.27
  5. Step 5: Solve for x
    x = 128,106,099.27/13,653.01
  6. Step 6: Final answer
    x = 9,382.99

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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.