Home / 13,078.98-18,058.32-8,049.96

Finding the Fourth Proportional to 13,078.98, 18,058.32 and 8,049.96

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Solution

The fourth proportional to 13,078.98, 18,058.32 and 8,049.96 is: 11,114.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.98 : 18,058.32 = 8,049.96 : x
  2. Step 2: Convert to fraction form
    13,078.98/18,058.32 = 8,049.96/x
  3. Step 3: Cross multiply
    13,078.98x = 18,058.32 × 8,049.96
  4. Step 4: Simplify right side
    13,078.98x = 145,368,753.67
  5. Step 5: Solve for x
    x = 145,368,753.67/13,078.98
  6. Step 6: Final answer
    x = 11,114.69

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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.