Home / 12,455.64-18,687.24-4,665.60

Finding the Fourth Proportional to 12,455.64, 18,687.24 and 4,665.60

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Solution

The fourth proportional to 12,455.64, 18,687.24 and 4,665.60 is: 6,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.64 : 18,687.24 = 4,665.60 : x
  2. Step 2: Convert to fraction form
    12,455.64/18,687.24 = 4,665.60/x
  3. Step 3: Cross multiply
    12,455.64x = 18,687.24 × 4,665.60
  4. Step 4: Simplify right side
    12,455.64x = 87,187,186.94
  5. Step 5: Solve for x
    x = 87,187,186.94/12,455.64
  6. Step 6: Final answer
    x = 6,999.82

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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.