Home / 12,607.08-18,904.86-3,840.36

Finding the Fourth Proportional to 12,607.08, 18,904.86 and 3,840.36

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Solution

The fourth proportional to 12,607.08, 18,904.86 and 3,840.36 is: 5,758.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607.08 : 18,904.86 = 3,840.36 : x
  2. Step 2: Convert to fraction form
    12,607.08/18,904.86 = 3,840.36/x
  3. Step 3: Cross multiply
    12,607.08x = 18,904.86 × 3,840.36
  4. Step 4: Simplify right side
    12,607.08x = 72,601,468.15
  5. Step 5: Solve for x
    x = 72,601,468.15/12,607.08
  6. Step 6: Final answer
    x = 5,758.79

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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.