Home / 13,261.01-19,891.40-3,400.26

Finding the Fourth Proportional to 13,261.01, 19,891.40 and 3,400.26

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Solution

The fourth proportional to 13,261.01, 19,891.40 and 3,400.26 is: 5,100.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.01 : 19,891.40 = 3,400.26 : x
  2. Step 2: Convert to fraction form
    13,261.01/19,891.40 = 3,400.26/x
  3. Step 3: Cross multiply
    13,261.01x = 19,891.40 × 3,400.26
  4. Step 4: Simplify right side
    13,261.01x = 67,635,914.76
  5. Step 5: Solve for x
    x = 67,635,914.76/13,261.01
  6. Step 6: Final answer
    x = 5,100.36

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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.