Home / 13,495.72-20,280.48-12,609.96

Finding the Fourth Proportional to 13,495.72, 20,280.48 and 12,609.96

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Solution

The fourth proportional to 13,495.72, 20,280.48 and 12,609.96 is: 18,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,495.72 : 20,280.48 = 12,609.96 : x
  2. Step 2: Convert to fraction form
    13,495.72/20,280.48 = 12,609.96/x
  3. Step 3: Cross multiply
    13,495.72x = 20,280.48 × 12,609.96
  4. Step 4: Simplify right side
    13,495.72x = 255,736,041.58
  5. Step 5: Solve for x
    x = 255,736,041.58/13,495.72
  6. Step 6: Final answer
    x = 18,949.42

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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.