Home / 12,116.68-18,167.58-4,712.51

Finding the Fourth Proportional to 12,116.68, 18,167.58 and 4,712.51

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Solution

The fourth proportional to 12,116.68, 18,167.58 and 4,712.51 is: 7,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.68 : 18,167.58 = 4,712.51 : x
  2. Step 2: Convert to fraction form
    12,116.68/18,167.58 = 4,712.51/x
  3. Step 3: Cross multiply
    12,116.68x = 18,167.58 × 4,712.51
  4. Step 4: Simplify right side
    12,116.68x = 85,614,947.84
  5. Step 5: Solve for x
    x = 85,614,947.84/12,116.68
  6. Step 6: Final answer
    x = 7,065.87

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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.