Home / 13,769.64-20,663.10-12,884.04

Finding the Fourth Proportional to 13,769.64, 20,663.10 and 12,884.04

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Solution

The fourth proportional to 13,769.64, 20,663.10 and 12,884.04 is: 19,334.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.64 : 20,663.10 = 12,884.04 : x
  2. Step 2: Convert to fraction form
    13,769.64/20,663.10 = 12,884.04/x
  3. Step 3: Cross multiply
    13,769.64x = 20,663.10 × 12,884.04
  4. Step 4: Simplify right side
    13,769.64x = 266,224,206.92
  5. Step 5: Solve for x
    x = 266,224,206.92/13,769.64
  6. Step 6: Final answer
    x = 19,334.14

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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.