Home / 13,436.58-20,158.94-5,427.24

Finding the Fourth Proportional to 13,436.58, 20,158.94 and 5,427.24

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Solution

The fourth proportional to 13,436.58, 20,158.94 and 5,427.24 is: 8,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.58 : 20,158.94 = 5,427.24 : x
  2. Step 2: Convert to fraction form
    13,436.58/20,158.94 = 5,427.24/x
  3. Step 3: Cross multiply
    13,436.58x = 20,158.94 × 5,427.24
  4. Step 4: Simplify right side
    13,436.58x = 109,407,343.50
  5. Step 5: Solve for x
    x = 109,407,343.50/13,436.58
  6. Step 6: Final answer
    x = 8,142.50

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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.