Home / 14,040.18-19,379.31-8,731.83

Finding the Fourth Proportional to 14,040.18, 19,379.31 and 8,731.83

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Solution

The fourth proportional to 14,040.18, 19,379.31 and 8,731.83 is: 12,052.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.18 : 19,379.31 = 8,731.83 : x
  2. Step 2: Convert to fraction form
    14,040.18/19,379.31 = 8,731.83/x
  3. Step 3: Cross multiply
    14,040.18x = 19,379.31 × 8,731.83
  4. Step 4: Simplify right side
    14,040.18x = 169,216,840.44
  5. Step 5: Solve for x
    x = 169,216,840.44/14,040.18
  6. Step 6: Final answer
    x = 12,052.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.