Home / 14,797.90-20,420.77-8,083.56

Finding the Fourth Proportional to 14,797.90, 20,420.77 and 8,083.56

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Solution

The fourth proportional to 14,797.90, 20,420.77 and 8,083.56 is: 11,155.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,797.90 : 20,420.77 = 8,083.56 : x
  2. Step 2: Convert to fraction form
    14,797.90/20,420.77 = 8,083.56/x
  3. Step 3: Cross multiply
    14,797.90x = 20,420.77 × 8,083.56
  4. Step 4: Simplify right side
    14,797.90x = 165,072,514.49
  5. Step 5: Solve for x
    x = 165,072,514.49/14,797.90
  6. Step 6: Final answer
    x = 11,155.13

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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.