Home / 12,472.23-17,208.09-7,690.56

Finding the Fourth Proportional to 12,472.23, 17,208.09 and 7,690.56

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Solution

The fourth proportional to 12,472.23, 17,208.09 and 7,690.56 is: 10,610.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.23 : 17,208.09 = 7,690.56 : x
  2. Step 2: Convert to fraction form
    12,472.23/17,208.09 = 7,690.56/x
  3. Step 3: Cross multiply
    12,472.23x = 17,208.09 × 7,690.56
  4. Step 4: Simplify right side
    12,472.23x = 132,339,848.63
  5. Step 5: Solve for x
    x = 132,339,848.63/12,472.23
  6. Step 6: Final answer
    x = 10,610.76

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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.