Home / 9,418.12-12,996.88-5,111.14

Finding the Fourth Proportional to 9,418.12, 12,996.88 and 5,111.14

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Solution

The fourth proportional to 9,418.12, 12,996.88 and 5,111.14 is: 7,053.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.12 : 12,996.88 = 5,111.14 : x
  2. Step 2: Convert to fraction form
    9,418.12/12,996.88 = 5,111.14/x
  3. Step 3: Cross multiply
    9,418.12x = 12,996.88 × 5,111.14
  4. Step 4: Simplify right side
    9,418.12x = 66,428,873.24
  5. Step 5: Solve for x
    x = 66,428,873.24/9,418.12
  6. Step 6: Final answer
    x = 7,053.31

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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.