Home / 12,187.93-18,278.27-5,167.84

Finding the Fourth Proportional to 12,187.93, 18,278.27 and 5,167.84

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Solution

The fourth proportional to 12,187.93, 18,278.27 and 5,167.84 is: 7,750.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.93 : 18,278.27 = 5,167.84 : x
  2. Step 2: Convert to fraction form
    12,187.93/18,278.27 = 5,167.84/x
  3. Step 3: Cross multiply
    12,187.93x = 18,278.27 × 5,167.84
  4. Step 4: Simplify right side
    12,187.93x = 94,459,122.68
  5. Step 5: Solve for x
    x = 94,459,122.68/12,187.93
  6. Step 6: Final answer
    x = 7,750.22

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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.