Home / 13,105.44-18,084.98-7,137.11

Finding the Fourth Proportional to 13,105.44, 18,084.98 and 7,137.11

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Solution

The fourth proportional to 13,105.44, 18,084.98 and 7,137.11 is: 9,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.44 : 18,084.98 = 7,137.11 : x
  2. Step 2: Convert to fraction form
    13,105.44/18,084.98 = 7,137.11/x
  3. Step 3: Cross multiply
    13,105.44x = 18,084.98 × 7,137.11
  4. Step 4: Simplify right side
    13,105.44x = 129,074,365.50
  5. Step 5: Solve for x
    x = 129,074,365.50/13,105.44
  6. Step 6: Final answer
    x = 9,848.92

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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.