Home / 12,927.11-17,839.40-7,338.11

Finding the Fourth Proportional to 12,927.11, 17,839.40 and 7,338.11

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Solution

The fourth proportional to 12,927.11, 17,839.40 and 7,338.11 is: 10,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.11 : 17,839.40 = 7,338.11 : x
  2. Step 2: Convert to fraction form
    12,927.11/17,839.40 = 7,338.11/x
  3. Step 3: Cross multiply
    12,927.11x = 17,839.40 × 7,338.11
  4. Step 4: Simplify right side
    12,927.11x = 130,907,353.65
  5. Step 5: Solve for x
    x = 130,907,353.65/12,927.11
  6. Step 6: Final answer
    x = 10,126.58

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1.5x scale

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.