Home / 12,308.88-18,475.84-9,012.16

Finding the Fourth Proportional to 12,308.88, 18,475.84 and 9,012.16

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Solution

The fourth proportional to 12,308.88, 18,475.84 and 9,012.16 is: 13,527.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.88 : 18,475.84 = 9,012.16 : x
  2. Step 2: Convert to fraction form
    12,308.88/18,475.84 = 9,012.16/x
  3. Step 3: Cross multiply
    12,308.88x = 18,475.84 × 9,012.16
  4. Step 4: Simplify right side
    12,308.88x = 166,507,226.21
  5. Step 5: Solve for x
    x = 166,507,226.21/12,308.88
  6. Step 6: Final answer
    x = 13,527.41

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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.