Home / 18,824.40-25,968.60-11,268.72

Finding the Fourth Proportional to 18,824.40, 25,968.60 and 11,268.72

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Solution

The fourth proportional to 18,824.40, 25,968.60 and 11,268.72 is: 15,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.40 : 25,968.60 = 11,268.72 : x
  2. Step 2: Convert to fraction form
    18,824.40/25,968.60 = 11,268.72/x
  3. Step 3: Cross multiply
    18,824.40x = 25,968.60 × 11,268.72
  4. Step 4: Simplify right side
    18,824.40x = 292,632,882.19
  5. Step 5: Solve for x
    x = 292,632,882.19/18,824.40
  6. Step 6: Final answer
    x = 15,545.40

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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.