Home / 12,339.12-17,028.12-6,750

Finding the Fourth Proportional to 12,339.12, 17,028.12 and 6,750

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Solution

The fourth proportional to 12,339.12, 17,028.12 and 6,750 is: 9,315.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.12 : 17,028.12 = 6,750 : x
  2. Step 2: Convert to fraction form
    12,339.12/17,028.12 = 6,750/x
  3. Step 3: Cross multiply
    12,339.12x = 17,028.12 × 6,750
  4. Step 4: Simplify right side
    12,339.12x = 114,939,810
  5. Step 5: Solve for x
    x = 114,939,810/12,339.12
  6. Step 6: Final answer
    x = 9,315.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.