Home / 13,980.46-20,958.18-5,089.52

Finding the Fourth Proportional to 13,980.46, 20,958.18 and 5,089.52

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Solution

The fourth proportional to 13,980.46, 20,958.18 and 5,089.52 is: 7,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.46 : 20,958.18 = 5,089.52 : x
  2. Step 2: Convert to fraction form
    13,980.46/20,958.18 = 5,089.52/x
  3. Step 3: Cross multiply
    13,980.46x = 20,958.18 × 5,089.52
  4. Step 4: Simplify right side
    13,980.46x = 106,666,991.69
  5. Step 5: Solve for x
    x = 106,666,991.69/13,980.46
  6. Step 6: Final answer
    x = 7,629.72

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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.