Home / 13,364.72-18,450.96-8,894.64

Finding the Fourth Proportional to 13,364.72, 18,450.96 and 8,894.64

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Solution

The fourth proportional to 13,364.72, 18,450.96 and 8,894.64 is: 12,279.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.72 : 18,450.96 = 8,894.64 : x
  2. Step 2: Convert to fraction form
    13,364.72/18,450.96 = 8,894.64/x
  3. Step 3: Cross multiply
    13,364.72x = 18,450.96 × 8,894.64
  4. Step 4: Simplify right side
    13,364.72x = 164,114,646.85
  5. Step 5: Solve for x
    x = 164,114,646.85/13,364.72
  6. Step 6: Final answer
    x = 12,279.69

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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.