Home / 11,112.28-15,326.40-7,754.02

Finding the Fourth Proportional to 11,112.28, 15,326.40 and 7,754.02

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Solution

The fourth proportional to 11,112.28, 15,326.40 and 7,754.02 is: 10,694.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.28 : 15,326.40 = 7,754.02 : x
  2. Step 2: Convert to fraction form
    11,112.28/15,326.40 = 7,754.02/x
  3. Step 3: Cross multiply
    11,112.28x = 15,326.40 × 7,754.02
  4. Step 4: Simplify right side
    11,112.28x = 118,841,212.13
  5. Step 5: Solve for x
    x = 118,841,212.13/11,112.28
  6. Step 6: Final answer
    x = 10,694.58

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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.