Home / 15,986.70-23,979.03-4,892.51

Finding the Fourth Proportional to 15,986.70, 23,979.03 and 4,892.51

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Solution

The fourth proportional to 15,986.70, 23,979.03 and 4,892.51 is: 7,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.70 : 23,979.03 = 4,892.51 : x
  2. Step 2: Convert to fraction form
    15,986.70/23,979.03 = 4,892.51/x
  3. Step 3: Cross multiply
    15,986.70x = 23,979.03 × 4,892.51
  4. Step 4: Simplify right side
    15,986.70x = 117,317,524.17
  5. Step 5: Solve for x
    x = 117,317,524.17/15,986.70
  6. Step 6: Final answer
    x = 7,338.45

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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.