Home / 11,268.57-15,554.33-7,912.23

Finding the Fourth Proportional to 11,268.57, 15,554.33 and 7,912.23

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Solution

The fourth proportional to 11,268.57, 15,554.33 and 7,912.23 is: 10,921.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268.57 : 15,554.33 = 7,912.23 : x
  2. Step 2: Convert to fraction form
    11,268.57/15,554.33 = 7,912.23/x
  3. Step 3: Cross multiply
    11,268.57x = 15,554.33 × 7,912.23
  4. Step 4: Simplify right side
    11,268.57x = 123,069,368.24
  5. Step 5: Solve for x
    x = 123,069,368.24/11,268.57
  6. Step 6: Final answer
    x = 10,921.47

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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.