Home / 10,668.47-15,992.37-5,990.72

Finding the Fourth Proportional to 10,668.47, 15,992.37 and 5,990.72

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Solution

The fourth proportional to 10,668.47, 15,992.37 and 5,990.72 is: 8,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.47 : 15,992.37 = 5,990.72 : x
  2. Step 2: Convert to fraction form
    10,668.47/15,992.37 = 5,990.72/x
  3. Step 3: Cross multiply
    10,668.47x = 15,992.37 × 5,990.72
  4. Step 4: Simplify right side
    10,668.47x = 95,805,730.84
  5. Step 5: Solve for x
    x = 95,805,730.84/10,668.47
  6. Step 6: Final answer
    x = 8,980.27

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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.