Home / 14,821.76-20,454.04-8,107.28

Finding the Fourth Proportional to 14,821.76, 20,454.04 and 8,107.28

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Solution

The fourth proportional to 14,821.76, 20,454.04 and 8,107.28 is: 11,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,821.76 : 20,454.04 = 8,107.28 : x
  2. Step 2: Convert to fraction form
    14,821.76/20,454.04 = 8,107.28/x
  3. Step 3: Cross multiply
    14,821.76x = 20,454.04 × 8,107.28
  4. Step 4: Simplify right side
    14,821.76x = 165,826,629.41
  5. Step 5: Solve for x
    x = 165,826,629.41/14,821.76
  6. Step 6: Final answer
    x = 11,188.05

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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.