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Finding the Fourth Proportional to 12,776.00, 19,164.01 and 5,747.81

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Solution

The fourth proportional to 12,776.00, 19,164.01 and 5,747.81 is: 8,621.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.00 : 19,164.01 = 5,747.81 : x
  2. Step 2: Convert to fraction form
    12,776.00/19,164.01 = 5,747.81/x
  3. Step 3: Cross multiply
    12,776.00x = 19,164.01 × 5,747.81
  4. Step 4: Simplify right side
    12,776.00x = 110,151,026.04
  5. Step 5: Solve for x
    x = 110,151,026.04/12,776.00
  6. Step 6: Final answer
    x = 8,621.71

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Similar ratio
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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.