Home / 12,558.11-18,840.36-8,867.54

Finding the Fourth Proportional to 12,558.11, 18,840.36 and 8,867.54

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Solution

The fourth proportional to 12,558.11, 18,840.36 and 8,867.54 is: 13,303.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.11 : 18,840.36 = 8,867.54 : x
  2. Step 2: Convert to fraction form
    12,558.11/18,840.36 = 8,867.54/x
  3. Step 3: Cross multiply
    12,558.11x = 18,840.36 × 8,867.54
  4. Step 4: Simplify right side
    12,558.11x = 167,067,726.27
  5. Step 5: Solve for x
    x = 167,067,726.27/12,558.11
  6. Step 6: Final answer
    x = 13,303.58

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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.