Home / 13,511.58-20,244.12-12,141.96

Finding the Fourth Proportional to 13,511.58, 20,244.12 and 12,141.96

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Solution

The fourth proportional to 13,511.58, 20,244.12 and 12,141.96 is: 18,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.58 : 20,244.12 = 12,141.96 : x
  2. Step 2: Convert to fraction form
    13,511.58/20,244.12 = 12,141.96/x
  3. Step 3: Cross multiply
    13,511.58x = 20,244.12 × 12,141.96
  4. Step 4: Simplify right side
    13,511.58x = 245,803,295.28
  5. Step 5: Solve for x
    x = 245,803,295.28/13,511.58
  6. Step 6: Final answer
    x = 18,192.05

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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.