Home / 13,761.04-20,621.88-10,996.12

Finding the Fourth Proportional to 13,761.04, 20,621.88 and 10,996.12

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Solution

The fourth proportional to 13,761.04, 20,621.88 and 10,996.12 is: 16,478.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.04 : 20,621.88 = 10,996.12 : x
  2. Step 2: Convert to fraction form
    13,761.04/20,621.88 = 10,996.12/x
  3. Step 3: Cross multiply
    13,761.04x = 20,621.88 × 10,996.12
  4. Step 4: Simplify right side
    13,761.04x = 226,760,667.11
  5. Step 5: Solve for x
    x = 226,760,667.11/13,761.04
  6. Step 6: Final answer
    x = 16,478.45

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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.