Home / 13,118.90-18,104.44-7,453.46

Finding the Fourth Proportional to 13,118.90, 18,104.44 and 7,453.46

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Solution

The fourth proportional to 13,118.90, 18,104.44 and 7,453.46 is: 10,285.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.90 : 18,104.44 = 7,453.46 : x
  2. Step 2: Convert to fraction form
    13,118.90/18,104.44 = 7,453.46/x
  3. Step 3: Cross multiply
    13,118.90x = 18,104.44 × 7,453.46
  4. Step 4: Simplify right side
    13,118.90x = 134,940,719.36
  5. Step 5: Solve for x
    x = 134,940,719.36/13,118.90
  6. Step 6: Final answer
    x = 10,285.98

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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.