Home / 13,630.36-18,799.10-8,845.08

Finding the Fourth Proportional to 13,630.36, 18,799.10 and 8,845.08

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Solution

The fourth proportional to 13,630.36, 18,799.10 and 8,845.08 is: 12,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.36 : 18,799.10 = 8,845.08 : x
  2. Step 2: Convert to fraction form
    13,630.36/18,799.10 = 8,845.08/x
  3. Step 3: Cross multiply
    13,630.36x = 18,799.10 × 8,845.08
  4. Step 4: Simplify right side
    13,630.36x = 166,279,543.43
  5. Step 5: Solve for x
    x = 166,279,543.43/13,630.36
  6. Step 6: Final answer
    x = 12,199.20

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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.