Home / 12,342.96-18,474.12-6,712.20

Finding the Fourth Proportional to 12,342.96, 18,474.12 and 6,712.20

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Solution

The fourth proportional to 12,342.96, 18,474.12 and 6,712.20 is: 10,046.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.96 : 18,474.12 = 6,712.20 : x
  2. Step 2: Convert to fraction form
    12,342.96/18,474.12 = 6,712.20/x
  3. Step 3: Cross multiply
    12,342.96x = 18,474.12 × 6,712.20
  4. Step 4: Simplify right side
    12,342.96x = 124,001,988.26
  5. Step 5: Solve for x
    x = 124,001,988.26/12,342.96
  6. Step 6: Final answer
    x = 10,046.37

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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.