Home / 13,623.42-18,803.52-8,322.69

Finding the Fourth Proportional to 13,623.42, 18,803.52 and 8,322.69

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Solution

The fourth proportional to 13,623.42, 18,803.52 and 8,322.69 is: 11,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.42 : 18,803.52 = 8,322.69 : x
  2. Step 2: Convert to fraction form
    13,623.42/18,803.52 = 8,322.69/x
  3. Step 3: Cross multiply
    13,623.42x = 18,803.52 × 8,322.69
  4. Step 4: Simplify right side
    13,623.42x = 156,495,867.87
  5. Step 5: Solve for x
    x = 156,495,867.87/13,623.42
  6. Step 6: Final answer
    x = 11,487.27

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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.