Home / 14,135.08-21,202.98-7,891.60

Finding the Fourth Proportional to 14,135.08, 21,202.98 and 7,891.60

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Solution

The fourth proportional to 14,135.08, 21,202.98 and 7,891.60 is: 11,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.08 : 21,202.98 = 7,891.60 : x
  2. Step 2: Convert to fraction form
    14,135.08/21,202.98 = 7,891.60/x
  3. Step 3: Cross multiply
    14,135.08x = 21,202.98 × 7,891.60
  4. Step 4: Simplify right side
    14,135.08x = 167,325,436.97
  5. Step 5: Solve for x
    x = 167,325,436.97/14,135.08
  6. Step 6: Final answer
    x = 11,837.60

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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.