Home / 11,978.02-17,950.65-6,122.35

Finding the Fourth Proportional to 11,978.02, 17,950.65 and 6,122.35

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Solution

The fourth proportional to 11,978.02, 17,950.65 and 6,122.35 is: 9,175.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,978.02 : 17,950.65 = 6,122.35 : x
  2. Step 2: Convert to fraction form
    11,978.02/17,950.65 = 6,122.35/x
  3. Step 3: Cross multiply
    11,978.02x = 17,950.65 × 6,122.35
  4. Step 4: Simplify right side
    11,978.02x = 109,900,162.03
  5. Step 5: Solve for x
    x = 109,900,162.03/11,978.02
  6. Step 6: Final answer
    x = 9,175.15

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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.