Home / 13,625.57-18,803.81-8,322.77

Finding the Fourth Proportional to 13,625.57, 18,803.81 and 8,322.77

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Solution

The fourth proportional to 13,625.57, 18,803.81 and 8,322.77 is: 11,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.57 : 18,803.81 = 8,322.77 : x
  2. Step 2: Convert to fraction form
    13,625.57/18,803.81 = 8,322.77/x
  3. Step 3: Cross multiply
    13,625.57x = 18,803.81 × 8,322.77
  4. Step 4: Simplify right side
    13,625.57x = 156,499,744.14
  5. Step 5: Solve for x
    x = 156,499,744.14/13,625.57
  6. Step 6: Final answer
    x = 11,485.74

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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.