Home / 13,739.21-20,608.76-4,972.07

Finding the Fourth Proportional to 13,739.21, 20,608.76 and 4,972.07

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Solution

The fourth proportional to 13,739.21, 20,608.76 and 4,972.07 is: 7,458.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.21 : 20,608.76 = 4,972.07 : x
  2. Step 2: Convert to fraction form
    13,739.21/20,608.76 = 4,972.07/x
  3. Step 3: Cross multiply
    13,739.21x = 20,608.76 × 4,972.07
  4. Step 4: Simplify right side
    13,739.21x = 102,468,069.43
  5. Step 5: Solve for x
    x = 102,468,069.43/13,739.21
  6. Step 6: Final answer
    x = 7,458.08

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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.