Home / 16,242.84-24,378.48-7,929

Finding the Fourth Proportional to 16,242.84, 24,378.48 and 7,929

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Solution

The fourth proportional to 16,242.84, 24,378.48 and 7,929 is: 11,900.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,242.84 : 24,378.48 = 7,929 : x
  2. Step 2: Convert to fraction form
    16,242.84/24,378.48 = 7,929/x
  3. Step 3: Cross multiply
    16,242.84x = 24,378.48 × 7,929
  4. Step 4: Simplify right side
    16,242.84x = 193,296,967.92
  5. Step 5: Solve for x
    x = 193,296,967.92/16,242.84
  6. Step 6: Final answer
    x = 11,900.44

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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.