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Finding the Fourth Proportional to 12,710.66, 19,066.22 and 3,945.35

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Solution

The fourth proportional to 12,710.66, 19,066.22 and 3,945.35 is: 5,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,710.66 : 19,066.22 = 3,945.35 : x
  2. Step 2: Convert to fraction form
    12,710.66/19,066.22 = 3,945.35/x
  3. Step 3: Cross multiply
    12,710.66x = 19,066.22 × 3,945.35
  4. Step 4: Simplify right side
    12,710.66x = 75,222,911.08
  5. Step 5: Solve for x
    x = 75,222,911.08/12,710.66
  6. Step 6: Final answer
    x = 5,918.10

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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.