Home / 12,268.50-18,402.35-3,948.99

Finding the Fourth Proportional to 12,268.50, 18,402.35 and 3,948.99

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Solution

The fourth proportional to 12,268.50, 18,402.35 and 3,948.99 is: 5,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.50 : 18,402.35 = 3,948.99 : x
  2. Step 2: Convert to fraction form
    12,268.50/18,402.35 = 3,948.99/x
  3. Step 3: Cross multiply
    12,268.50x = 18,402.35 × 3,948.99
  4. Step 4: Simplify right side
    12,268.50x = 72,670,676.38
  5. Step 5: Solve for x
    x = 72,670,676.38/12,268.50
  6. Step 6: Final answer
    x = 5,923.35

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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.