Home / 13,665.12-20,476.80-7,093.44

Finding the Fourth Proportional to 13,665.12, 20,476.80 and 7,093.44

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Solution

The fourth proportional to 13,665.12, 20,476.80 and 7,093.44 is: 10,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665.12 : 20,476.80 = 7,093.44 : x
  2. Step 2: Convert to fraction form
    13,665.12/20,476.80 = 7,093.44/x
  3. Step 3: Cross multiply
    13,665.12x = 20,476.80 × 7,093.44
  4. Step 4: Simplify right side
    13,665.12x = 145,250,952.19
  5. Step 5: Solve for x
    x = 145,250,952.19/13,665.12
  6. Step 6: Final answer
    x = 10,629.32

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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.