Home / 13,637.27-18,811.26-8,322.86

Finding the Fourth Proportional to 13,637.27, 18,811.26 and 8,322.86

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Solution

The fourth proportional to 13,637.27, 18,811.26 and 8,322.86 is: 11,480.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.27 : 18,811.26 = 8,322.86 : x
  2. Step 2: Convert to fraction form
    13,637.27/18,811.26 = 8,322.86/x
  3. Step 3: Cross multiply
    13,637.27x = 18,811.26 × 8,322.86
  4. Step 4: Simplify right side
    13,637.27x = 156,563,483.40
  5. Step 5: Solve for x
    x = 156,563,483.40/13,637.27
  6. Step 6: Final answer
    x = 11,480.56

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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.