Home / 13,611.50-20,412.93-4,375.34

Finding the Fourth Proportional to 13,611.50, 20,412.93 and 4,375.34

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Solution

The fourth proportional to 13,611.50, 20,412.93 and 4,375.34 is: 6,561.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.50 : 20,412.93 = 4,375.34 : x
  2. Step 2: Convert to fraction form
    13,611.50/20,412.93 = 4,375.34/x
  3. Step 3: Cross multiply
    13,611.50x = 20,412.93 × 4,375.34
  4. Step 4: Simplify right side
    13,611.50x = 89,313,602.10
  5. Step 5: Solve for x
    x = 89,313,602.10/13,611.50
  6. Step 6: Final answer
    x = 6,561.63

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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.