Home / 14,817.58-20,448.30-8,103.24

Finding the Fourth Proportional to 14,817.58, 20,448.30 and 8,103.24

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Solution

The fourth proportional to 14,817.58, 20,448.30 and 8,103.24 is: 11,182.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,817.58 : 20,448.30 = 8,103.24 : x
  2. Step 2: Convert to fraction form
    14,817.58/20,448.30 = 8,103.24/x
  3. Step 3: Cross multiply
    14,817.58x = 20,448.30 × 8,103.24
  4. Step 4: Simplify right side
    14,817.58x = 165,697,467.30
  5. Step 5: Solve for x
    x = 165,697,467.30/14,817.58
  6. Step 6: Final answer
    x = 11,182.49

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Double scale
Find fourth proportional to 14,818.58, 20,449.68 and 8,104.24
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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.