Home / 14,579.73-20,115-8,205.03

Finding the Fourth Proportional to 14,579.73, 20,115 and 8,205.03

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Solution

The fourth proportional to 14,579.73, 20,115 and 8,205.03 is: 11,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,579.73 : 20,115 = 8,205.03 : x
  2. Step 2: Convert to fraction form
    14,579.73/20,115 = 8,205.03/x
  3. Step 3: Cross multiply
    14,579.73x = 20,115 × 8,205.03
  4. Step 4: Simplify right side
    14,579.73x = 165,044,178.45
  5. Step 5: Solve for x
    x = 165,044,178.45/14,579.73
  6. Step 6: Final answer
    x = 11,320.11

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Double scale
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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.