Home / 13,339.63-20,022.41-6,418.99

Finding the Fourth Proportional to 13,339.63, 20,022.41 and 6,418.99

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Solution

The fourth proportional to 13,339.63, 20,022.41 and 6,418.99 is: 9,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339.63 : 20,022.41 = 6,418.99 : x
  2. Step 2: Convert to fraction form
    13,339.63/20,022.41 = 6,418.99/x
  3. Step 3: Cross multiply
    13,339.63x = 20,022.41 × 6,418.99
  4. Step 4: Simplify right side
    13,339.63x = 128,523,649.57
  5. Step 5: Solve for x
    x = 128,523,649.57/13,339.63
  6. Step 6: Final answer
    x = 9,634.72

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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.