Home / 14,189.06-19,580.69-8,220.59

Finding the Fourth Proportional to 14,189.06, 19,580.69 and 8,220.59

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Solution

The fourth proportional to 14,189.06, 19,580.69 and 8,220.59 is: 11,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.06 : 19,580.69 = 8,220.59 : x
  2. Step 2: Convert to fraction form
    14,189.06/19,580.69 = 8,220.59/x
  3. Step 3: Cross multiply
    14,189.06x = 19,580.69 × 8,220.59
  4. Step 4: Simplify right side
    14,189.06x = 160,964,774.24
  5. Step 5: Solve for x
    x = 160,964,774.24/14,189.06
  6. Step 6: Final answer
    x = 11,344.29

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Half scale
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Double scale
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Similar ratio
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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.