Home / 13,675.07-20,490.74-12,362.87

Finding the Fourth Proportional to 13,675.07, 20,490.74 and 12,362.87

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Solution

The fourth proportional to 13,675.07, 20,490.74 and 12,362.87 is: 18,524.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.07 : 20,490.74 = 12,362.87 : x
  2. Step 2: Convert to fraction form
    13,675.07/20,490.74 = 12,362.87/x
  3. Step 3: Cross multiply
    13,675.07x = 20,490.74 × 12,362.87
  4. Step 4: Simplify right side
    13,675.07x = 253,324,390.60
  5. Step 5: Solve for x
    x = 253,324,390.60/13,675.07
  6. Step 6: Final answer
    x = 18,524.54

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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.