Home / 13,980.82-20,973.39-5,096.90

Finding the Fourth Proportional to 13,980.82, 20,973.39 and 5,096.90

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Solution

The fourth proportional to 13,980.82, 20,973.39 and 5,096.90 is: 7,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.82 : 20,973.39 = 5,096.90 : x
  2. Step 2: Convert to fraction form
    13,980.82/20,973.39 = 5,096.90/x
  3. Step 3: Cross multiply
    13,980.82x = 20,973.39 × 5,096.90
  4. Step 4: Simplify right side
    13,980.82x = 106,899,271.49
  5. Step 5: Solve for x
    x = 106,899,271.49/13,980.82
  6. Step 6: Final answer
    x = 7,646.14

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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.