Home / 13,185.60-18,197.10-7,883.34

Finding the Fourth Proportional to 13,185.60, 18,197.10 and 7,883.34

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Solution

The fourth proportional to 13,185.60, 18,197.10 and 7,883.34 is: 10,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.60 : 18,197.10 = 7,883.34 : x
  2. Step 2: Convert to fraction form
    13,185.60/18,197.10 = 7,883.34/x
  3. Step 3: Cross multiply
    13,185.60x = 18,197.10 × 7,883.34
  4. Step 4: Simplify right side
    13,185.60x = 143,453,926.31
  5. Step 5: Solve for x
    x = 143,453,926.31/13,185.60
  6. Step 6: Final answer
    x = 10,879.59

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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.