Home / 12,087.68-18,134.40-6,546.56

Finding the Fourth Proportional to 12,087.68, 18,134.40 and 6,546.56

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Solution

The fourth proportional to 12,087.68, 18,134.40 and 6,546.56 is: 9,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.68 : 18,134.40 = 6,546.56 : x
  2. Step 2: Convert to fraction form
    12,087.68/18,134.40 = 6,546.56/x
  3. Step 3: Cross multiply
    12,087.68x = 18,134.40 × 6,546.56
  4. Step 4: Simplify right side
    12,087.68x = 118,717,937.66
  5. Step 5: Solve for x
    x = 118,717,937.66/12,087.68
  6. Step 6: Final answer
    x = 9,821.40

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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.