Home / 14,145.30-21,221.60-9,993.51

Finding the Fourth Proportional to 14,145.30, 21,221.60 and 9,993.51

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Solution

The fourth proportional to 14,145.30, 21,221.60 and 9,993.51 is: 14,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.30 : 21,221.60 = 9,993.51 : x
  2. Step 2: Convert to fraction form
    14,145.30/21,221.60 = 9,993.51/x
  3. Step 3: Cross multiply
    14,145.30x = 21,221.60 × 9,993.51
  4. Step 4: Simplify right side
    14,145.30x = 212,078,221.85
  5. Step 5: Solve for x
    x = 212,078,221.85/14,145.30
  6. Step 6: Final answer
    x = 14,992.84

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Half scale
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Double scale
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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.