Home / 13,375.98-18,459.12-8,003.96

Finding the Fourth Proportional to 13,375.98, 18,459.12 and 8,003.96

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Solution

The fourth proportional to 13,375.98, 18,459.12 and 8,003.96 is: 11,045.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.98 : 18,459.12 = 8,003.96 : x
  2. Step 2: Convert to fraction form
    13,375.98/18,459.12 = 8,003.96/x
  3. Step 3: Cross multiply
    13,375.98x = 18,459.12 × 8,003.96
  4. Step 4: Simplify right side
    13,375.98x = 147,746,058.12
  5. Step 5: Solve for x
    x = 147,746,058.12/13,375.98
  6. Step 6: Final answer
    x = 11,045.62

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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.