Home / 12,472.96-17,212.14-6,807.56

Finding the Fourth Proportional to 12,472.96, 17,212.14 and 6,807.56

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Solution

The fourth proportional to 12,472.96, 17,212.14 and 6,807.56 is: 9,394.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.96 : 17,212.14 = 6,807.56 : x
  2. Step 2: Convert to fraction form
    12,472.96/17,212.14 = 6,807.56/x
  3. Step 3: Cross multiply
    12,472.96x = 17,212.14 × 6,807.56
  4. Step 4: Simplify right side
    12,472.96x = 117,172,675.78
  5. Step 5: Solve for x
    x = 117,172,675.78/12,472.96
  6. Step 6: Final answer
    x = 9,394.14

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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.