Home / 13,748.05-20,636.67-12,176.97

Finding the Fourth Proportional to 13,748.05, 20,636.67 and 12,176.97

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Solution

The fourth proportional to 13,748.05, 20,636.67 and 12,176.97 is: 18,278.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.05 : 20,636.67 = 12,176.97 : x
  2. Step 2: Convert to fraction form
    13,748.05/20,636.67 = 12,176.97/x
  3. Step 3: Cross multiply
    13,748.05x = 20,636.67 × 12,176.97
  4. Step 4: Simplify right side
    13,748.05x = 251,292,111.49
  5. Step 5: Solve for x
    x = 251,292,111.49/13,748.05
  6. Step 6: Final answer
    x = 18,278.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.