Home / 11,847.60-17,771.40-5,272.29

Finding the Fourth Proportional to 11,847.60, 17,771.40 and 5,272.29

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Solution

The fourth proportional to 11,847.60, 17,771.40 and 5,272.29 is: 7,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,847.60 : 17,771.40 = 5,272.29 : x
  2. Step 2: Convert to fraction form
    11,847.60/17,771.40 = 5,272.29/x
  3. Step 3: Cross multiply
    11,847.60x = 17,771.40 × 5,272.29
  4. Step 4: Simplify right side
    11,847.60x = 93,695,974.51
  5. Step 5: Solve for x
    x = 93,695,974.51/11,847.60
  6. Step 6: Final answer
    x = 7,908.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.