Home / 16,768.47-25,148.21-7,985.91

Finding the Fourth Proportional to 16,768.47, 25,148.21 and 7,985.91

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Solution

The fourth proportional to 16,768.47, 25,148.21 and 7,985.91 is: 11,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,768.47 : 25,148.21 = 7,985.91 : x
  2. Step 2: Convert to fraction form
    16,768.47/25,148.21 = 7,985.91/x
  3. Step 3: Cross multiply
    16,768.47x = 25,148.21 × 7,985.91
  4. Step 4: Simplify right side
    16,768.47x = 200,831,301.79
  5. Step 5: Solve for x
    x = 200,831,301.79/16,768.47
  6. Step 6: Final answer
    x = 11,976.72

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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.