Home / 13,557.69-20,331.77-4,067.18

Finding the Fourth Proportional to 13,557.69, 20,331.77 and 4,067.18

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Solution

The fourth proportional to 13,557.69, 20,331.77 and 4,067.18 is: 6,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.69 : 20,331.77 = 4,067.18 : x
  2. Step 2: Convert to fraction form
    13,557.69/20,331.77 = 4,067.18/x
  3. Step 3: Cross multiply
    13,557.69x = 20,331.77 × 4,067.18
  4. Step 4: Simplify right side
    13,557.69x = 82,692,953.06
  5. Step 5: Solve for x
    x = 82,692,953.06/13,557.69
  6. Step 6: Final answer
    x = 6,099.34

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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.