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Finding the Fourth Proportional to 12,710.81, 19,066.22 and 3,476.81

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Solution

The fourth proportional to 12,710.81, 19,066.22 and 3,476.81 is: 5,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.81 : 19,066.22 = 3,476.81 : x
  2. Step 2: Convert to fraction form
    12,710.81/19,066.22 = 3,476.81/x
  3. Step 3: Cross multiply
    12,710.81x = 19,066.22 × 3,476.81
  4. Step 4: Simplify right side
    12,710.81x = 66,289,624.36
  5. Step 5: Solve for x
    x = 66,289,624.36/12,710.81
  6. Step 6: Final answer
    x = 5,215.22

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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.