Home / 12,559.20-18,843.60-12,362.40

Finding the Fourth Proportional to 12,559.20, 18,843.60 and 12,362.40

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Solution

The fourth proportional to 12,559.20, 18,843.60 and 12,362.40 is: 18,548.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.20 : 18,843.60 = 12,362.40 : x
  2. Step 2: Convert to fraction form
    12,559.20/18,843.60 = 12,362.40/x
  3. Step 3: Cross multiply
    12,559.20x = 18,843.60 × 12,362.40
  4. Step 4: Simplify right side
    12,559.20x = 232,952,120.64
  5. Step 5: Solve for x
    x = 232,952,120.64/12,559.20
  6. Step 6: Final answer
    x = 18,548.32

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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.