Home / 13,327.68-19,989.66-7,325.64

Finding the Fourth Proportional to 13,327.68, 19,989.66 and 7,325.64

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Solution

The fourth proportional to 13,327.68, 19,989.66 and 7,325.64 is: 10,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.68 : 19,989.66 = 7,325.64 : x
  2. Step 2: Convert to fraction form
    13,327.68/19,989.66 = 7,325.64/x
  3. Step 3: Cross multiply
    13,327.68x = 19,989.66 × 7,325.64
  4. Step 4: Simplify right side
    13,327.68x = 146,437,052.88
  5. Step 5: Solve for x
    x = 146,437,052.88/13,327.68
  6. Step 6: Final answer
    x = 10,987.44

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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.