Home / 13,837.41-20,756.12-12,456.54

Finding the Fourth Proportional to 13,837.41, 20,756.12 and 12,456.54

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Solution

The fourth proportional to 13,837.41, 20,756.12 and 12,456.54 is: 18,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.41 : 20,756.12 = 12,456.54 : x
  2. Step 2: Convert to fraction form
    13,837.41/20,756.12 = 12,456.54/x
  3. Step 3: Cross multiply
    13,837.41x = 20,756.12 × 12,456.54
  4. Step 4: Simplify right side
    13,837.41x = 258,549,376.74
  5. Step 5: Solve for x
    x = 258,549,376.74/13,837.41
  6. Step 6: Final answer
    x = 18,684.81

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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.