Home / 13,578.77-20,362.39-6,187.93

Finding the Fourth Proportional to 13,578.77, 20,362.39 and 6,187.93

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Solution

The fourth proportional to 13,578.77, 20,362.39 and 6,187.93 is: 9,279.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.77 : 20,362.39 = 6,187.93 : x
  2. Step 2: Convert to fraction form
    13,578.77/20,362.39 = 6,187.93/x
  3. Step 3: Cross multiply
    13,578.77x = 20,362.39 × 6,187.93
  4. Step 4: Simplify right side
    13,578.77x = 126,000,977.58
  5. Step 5: Solve for x
    x = 126,000,977.58/13,578.77
  6. Step 6: Final answer
    x = 9,279.26

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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.