Home / 12,339.13-17,028.41-6,750.13

Finding the Fourth Proportional to 12,339.13, 17,028.41 and 6,750.13

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Solution

The fourth proportional to 12,339.13, 17,028.41 and 6,750.13 is: 9,315.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.13 : 17,028.41 = 6,750.13 : x
  2. Step 2: Convert to fraction form
    12,339.13/17,028.41 = 6,750.13/x
  3. Step 3: Cross multiply
    12,339.13x = 17,028.41 × 6,750.13
  4. Step 4: Simplify right side
    12,339.13x = 114,943,981.19
  5. Step 5: Solve for x
    x = 114,943,981.19/12,339.13
  6. Step 6: Final answer
    x = 9,315.40

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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.