Home / 10,409.13-15,611.55-3,387.33

Finding the Fourth Proportional to 10,409.13, 15,611.55 and 3,387.33

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Solution

The fourth proportional to 10,409.13, 15,611.55 and 3,387.33 is: 5,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.13 : 15,611.55 = 3,387.33 : x
  2. Step 2: Convert to fraction form
    10,409.13/15,611.55 = 3,387.33/x
  3. Step 3: Cross multiply
    10,409.13x = 15,611.55 × 3,387.33
  4. Step 4: Simplify right side
    10,409.13x = 52,881,471.66
  5. Step 5: Solve for x
    x = 52,881,471.66/10,409.13
  6. Step 6: Final answer
    x = 5,080.30

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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.