Home / 18,268.92-25,211.07-9,885.42

Finding the Fourth Proportional to 18,268.92, 25,211.07 and 9,885.42

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Solution

The fourth proportional to 18,268.92, 25,211.07 and 9,885.42 is: 13,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,268.92 : 25,211.07 = 9,885.42 : x
  2. Step 2: Convert to fraction form
    18,268.92/25,211.07 = 9,885.42/x
  3. Step 3: Cross multiply
    18,268.92x = 25,211.07 × 9,885.42
  4. Step 4: Simplify right side
    18,268.92x = 249,222,015.60
  5. Step 5: Solve for x
    x = 249,222,015.60/18,268.92
  6. Step 6: Final answer
    x = 13,641.86

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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.