Home / 11,382.40-17,065.38-7,675.36

Finding the Fourth Proportional to 11,382.40, 17,065.38 and 7,675.36

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Solution

The fourth proportional to 11,382.40, 17,065.38 and 7,675.36 is: 11,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.40 : 17,065.38 = 7,675.36 : x
  2. Step 2: Convert to fraction form
    11,382.40/17,065.38 = 7,675.36/x
  3. Step 3: Cross multiply
    11,382.40x = 17,065.38 × 7,675.36
  4. Step 4: Simplify right side
    11,382.40x = 130,982,935.04
  5. Step 5: Solve for x
    x = 130,982,935.04/11,382.40
  6. Step 6: Final answer
    x = 11,507.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.