Home / 12,607.82-18,908.37-7,660.34

Finding the Fourth Proportional to 12,607.82, 18,908.37 and 7,660.34

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Solution

The fourth proportional to 12,607.82, 18,908.37 and 7,660.34 is: 11,488.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.82 : 18,908.37 = 7,660.34 : x
  2. Step 2: Convert to fraction form
    12,607.82/18,908.37 = 7,660.34/x
  3. Step 3: Cross multiply
    12,607.82x = 18,908.37 × 7,660.34
  4. Step 4: Simplify right side
    12,607.82x = 144,844,543.05
  5. Step 5: Solve for x
    x = 144,844,543.05/12,607.82
  6. Step 6: Final answer
    x = 11,488.47

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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.