Home / 13,461.58-20,193.05-5,142.32

Finding the Fourth Proportional to 13,461.58, 20,193.05 and 5,142.32

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Solution

The fourth proportional to 13,461.58, 20,193.05 and 5,142.32 is: 7,713.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.58 : 20,193.05 = 5,142.32 : x
  2. Step 2: Convert to fraction form
    13,461.58/20,193.05 = 5,142.32/x
  3. Step 3: Cross multiply
    13,461.58x = 20,193.05 × 5,142.32
  4. Step 4: Simplify right side
    13,461.58x = 103,838,998.20
  5. Step 5: Solve for x
    x = 103,838,998.20/13,461.58
  6. Step 6: Final answer
    x = 7,713.73

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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.