Home / 13,445.93-20,172.99-6,876.73

Finding the Fourth Proportional to 13,445.93, 20,172.99 and 6,876.73

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Solution

The fourth proportional to 13,445.93, 20,172.99 and 6,876.73 is: 10,317.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.93 : 20,172.99 = 6,876.73 : x
  2. Step 2: Convert to fraction form
    13,445.93/20,172.99 = 6,876.73/x
  3. Step 3: Cross multiply
    13,445.93x = 20,172.99 × 6,876.73
  4. Step 4: Simplify right side
    13,445.93x = 138,724,205.52
  5. Step 5: Solve for x
    x = 138,724,205.52/13,445.93
  6. Step 6: Final answer
    x = 10,317.19

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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.